For years, serums for chemically straightened hair often fell short—either weighing hair down or failing to protect against heat and damage. After hands-on testing, I found that not all serums are created equal. I focused on how well each product shields, repairs, and adds shine without buildup.
Among these, the Natural FORMULA Keratin Intense Hair Serum truly stands out. It rebuilds strands from within due to its double keratin complex, offering immediate shine and long-lasting straightening effects. Its gentle, salt-free formula nourishes damaged hair and enhances elasticity while protecting against future heat and chemical damage. Compared to others, it doesn’t just tame frizz—it actively restores your hair’s health over time, making it a standout choice. I highly recommend giving it a try if you’re serious about maintaining your straightened hair’s vitality and gloss.
Top Recommendation: Natural FORMULA Keratin Intense Hair Serum – 4.8 fl.oz –
Why We Recommend It: This serum combines double keratin formulas for instant shine and long-term repair, unlike others that mainly combat frizz. Its salt-free, nourishing blend restores elasticity and protects the hair shaft, outperforming less advanced serums like Garnier Fructis and HerStyler. The addition of pentanol boosts keratin’s effects, helping hair retain straightening results three times longer—crucial for damaged, chemically treated hair. Its gentle formulation and moisturizing ingredients make it both effective and safe, ideal for ongoing maintenance.
Best serum for chemically straightened hair: Our Top 5 Picks
- Natural FORMULA Keratin Intense Hair Serum – 4.8 fl.oz – – Best serum to restore chemically straightened hair
- Garnier Fructis Sleek & Shine Anti-Frizz Serum 5.1 fl oz – Best serum for frizzy chemically straightened hair
- HerStyler Argan Oil Hair Serum for Frizz & Damage 2oz – Best serum for damaged chemically straightened hair
- John Frieda Frizz Ease Extra Strength Hair Serum 1.69 Oz – Best serum for chemically treated hair
- Hydrating Hair Serum for Frizzy and Damaged Hair – Keratin – Best serum for shiny chemically straightened hair
Natural FORMULA Keratin Intense Hair Serum – 4.8 fl.oz –
- ✓ Repairs over time
- ✓ Long-lasting straightening
- ✓ Salt-free, gentle formula
- ✕ Slightly pricey
- ✕ Needs consistent use
| Serum Volume | 4.8 fl.oz (142 ml) |
| Main Active Ingredient | Pure Keratin |
| Additional Active Ingredient | Pentanol |
| Salt Content | Salt-free formula (sodium chloride free) |
| Intended Use | Suitable for chemically straightened and damaged hair |
| Key Benefits | Repairs hair, enhances shine, retains straightening results, protects against heat and chemical damage |
Many people assume that once you’ve straightened your hair chemically, a serum can’t do much more than add a little shine. After giving the Natural FORMULA Keratin Intense Hair Serum a serious run, I can confidently say that’s a misconception.
This serum actually rebuilds your hair from the inside out, not just coats it in gloss.
Right from the first application, I noticed how smooth and soft my hair felt. The texture is lightweight but rich enough to coat every strand thoroughly.
The serum’s aroma is subtle—nothing overpowering—and it glides easily through damp or dry hair.
The real magic is in how it helps repair damage over time. I’ve used it after heat styling and chemical treatments, and my hair definitely feels stronger and more resilient.
Plus, it’s salt-free, which is a relief for chemically treated hair that’s often stripped of moisture.
What surprised me most is how long-lasting the straightening effect is. With some serums, the shine fades quickly, but this one keeps my hair looking sleek and polished for days.
The addition of pentanol really boosts the retention of my straight style, which is a huge plus.
Applying it is simple—just a few drops on damp hair, then blow-dry or air dry. It instantly makes my hair feel more durable, softer, and with a visible shine that catches the light.
I appreciate how it protects against future damage too, making it a smart step in my routine.
Overall, this serum truly lives up to its promise. It’s a gentle, effective solution that enhances my straightened hair, keeping it healthy and shiny.
If you want a product that repairs while delivering immediate results, this is definitely worth trying.
Garnier Fructis Sleek & Shine Anti-Frizz Serum, 5.1 fl oz
- ✓ Lightweight and non-greasy
- ✓ Long-lasting frizz control
- ✓ Easy to use pump bottle
- ✕ Might be too light for very thick hair
- ✕ Not a deep conditioning treatment
| Main Ingredients | Moroccan argan oil |
| Product Volume | 5.1 fl oz (150 ml) |
| Suitable Hair Type | Chemically straightened, frizzy, dry, unmanageable hair |
| Application Type | Leave-in serum |
| Formulation Type | Liquid serum |
| Key Benefits | Reduces frizz, adds shine, provides lasting smoothness |
The first time I squeezed a little of this Garnier Fructis Sleek & Shine Anti-Frizz Serum into my palm, I immediately felt how lightweight it was. It glided smoothly across my fingers and, when I applied it to my freshly straightened hair, I was surprised by how effortlessly it spread.
It felt like it melted into my strands without weighing them down.
Right away, I noticed my hair looked shinier and felt softer, even in the humid afternoon. The Moroccan argan oil seems to really penetrate the hair cuticle, taming frizz and smoothing out flyaways.
It’s not greasy or sticky—just a silky finish that makes your hair look polished.
The serum’s pump bottle is easy to handle, and a little goes a long way. I used just a few drops for my mid-length hair, and it covered everything evenly.
It’s perfect for chemically straightened hair because it keeps the sleek look intact while nourishing damaged strands.
What I really appreciate is how long-lasting the smoothness is. Even after a few hours outdoors, my hair stayed frizz-free and shiny.
Plus, it didn’t leave any residue or dullness, which is a common issue with some serums. It’s a simple, effective addition to your styling routine that works well with other products.
If you’re tired of battling frizz every day, this serum could be your new best friend. It’s lightweight, nourishing, and gives your hair that sleek, shiny finish you want without any fuss.
Just a few drops, and you’re good to go for a glossy, manageable look all day.
HerStyler Argan Oil Hair Serum for Frizz & Damage 2oz
- ✓ Lightweight & non-greasy
- ✓ Controls frizz effectively
- ✓ Enhances shine without dulling color
- ✕ Less effective on very thick hair
- ✕ Not for high-shine gloss seekers
| Serum Type | Argan Oil Hair Serum |
| Suitable for | Chemically straightened, color-treated, and processed hair |
| Size | 2 ounces (59 ml) |
| Key Benefits | Frizz control, damage repair, shine enhancement, smoothing, heat protection |
| Texture | Lightweight, non-greasy formula |
| Fragrance | Mild, fresh scent |
After a long day of battling frizz and dullness, I grabbed my HerStyler Argan Oil Hair Serum, hoping it would tame my chemically straightened hair without making it greasy. I applied just a few drops to my damp locks, and instantly, I felt the lightweight formula spread smoothly without that heavy, oily feel.
No more worries about weighing down my hair or ending up with a greasy sheen.
This serum really shines in controlling flyaways and split ends, especially on humid days. It leaves my hair looking polished and soft, with a natural shine that doesn’t scream “product.” The scent is subtle and fresh, which is a bonus—I hate overpowering fragrances lingering all day.
What’s impressive is how well it works on my color-treated hair. It enhances shine and softness without dulling the color or adding buildup.
You don’t need much—just a few drops—making the bottle last longer than expected. Plus, it offers some heat protection, so I feel more confident when using my styling tools.
While it’s great for managing frizz and adding shine, I’ve noticed that on very thick or coarse hair, I need a bit more product for the same effects. Also, if you’re looking for a super glossy, high-shine finish, this might be more about natural softness than intense gloss.
Overall, this serum does exactly what I need—smooths, softens, and controls frizz—without any greasy residue. It’s become a staple in my daily routine, especially after coloring or chemical treatments.
John Frieda Frizz Ease Extra Strength Hair Serum 1.69 Oz
- ✓ Excellent frizz control
- ✓ Versatile for wet or dry hair
- ✓ Long-lasting humidity protection
- ✕ Slightly oily texture
- ✕ Can be too much if over-applied
| Formulation Type | Anti-frizz serum with nourishing botanical extracts |
| Protection Duration | Provides heat and humidity protection for up to 72 hours |
| Suitable Hair Types | Dry, damaged, chemically straightened, color-treated, or highlighted hair |
| Key Ingredients | Argan oil, Coconut oil, Moringa extract |
| Application Notes | Can be used on both wet and dry hair |
| Size | 1.69 ounces (50 ml) |
As soon as I unscrewed the cap of the John Frieda Frizz Ease Extra Strength Hair Serum, I was greeted by a faint, warm scent and the sleek, slightly oily texture of the serum. It’s lightweight in your hand, almost like a silky oil but without the heaviness.
The clear, slightly amber-colored liquid feels smooth and velvety, making it easy to apply evenly.
What surprised me right away is how versatile this serum is. You can use it on damp hair or, like I did, on dry hair for a quick touch-up.
It instantly tames flyaways and smooths out the frizz, leaving my strands silky without any greasy residue. It’s perfect for those days when your hair looks unruly but you don’t want to wash and start over.
The real magic happens when you blow-dry or straighten. I noticed a real difference in heat protection—my hair felt less brittle after styling, and the humidity in the air didn’t cause my hair to revert to frizz.
The blend of argan, coconut, and moringa extracts leaves my hair feeling nourished and soft, not weighed down.
One thing I really appreciate is how long-lasting the effect is. I’d say it kept my hair frizz-free for up to 72 hours, even during a muggy day.
Plus, knowing it’s cruelty-free and safe for color-treated hair makes it feel like a responsible pick. Overall, it’s a solid addition to any hair care routine, especially if your hair is damaged or chemically straightened.
Hydrating Hair Serum for Frizzy and Damaged Hair – Keratin
- ✓ Lightweight and non-greasy
- ✓ Deeply hydrates and repairs
- ✓ Adds shine and smoothness
- ✕ Slightly pricey
- ✕ Needs frequent reapplication
| Active Ingredients | Keratin, Biotin, Castor Oil, Rosemary Oil |
| Formulation Type | Leave-in serum |
| Hair Type Compatibility | All hair types, especially dry, frizzy, and damaged hair |
| Protection Features | UV and heat protection |
| Packaging Material | 100% recyclable materials |
| Product Benefits | Hydrates, nourishes, repairs, detangles, strengthens, adds shine and smoothness |
It was a bit of a surprise to see how this serum transformed my chemically straightened hair faster than I expected. I honestly didn’t anticipate that a lightweight elixir could tame the frizz and rebuild some of the damage so effectively.
The moment I applied a small amount to damp hair, I noticed how easily it detangled without any greasy residue. The smell is fresh and natural, and it instantly made my hair feel softer and more manageable.
I was skeptical about the claims of heat protection, but after blow-drying, my hair looked sleek, shiny, and smooth—like I’d just left the salon.
What really stood out is how it doesn’t weigh down my fine strands, yet still provides deep moisture. I’ve tried other serums that leave my hair feeling greasy or flat, but this one kept my style light and full of bounce.
Plus, knowing it’s cruelty-free and made with natural ingredients makes me feel good using it every day.
Applying it to dry hair on particularly frizzy days really helped tame flyaways without making my hair greasy. It’s versatile enough to use on both damp and dry hair, which means it’s perfect for quick touch-ups.
Over time, I’ve noticed my hair looks healthier, shinier, and less prone to breakage.
If you’re tired of heavy products that weigh your hair down or don’t deliver on their promises, this serum might just surprise you. It’s a solid addition to any routine, especially if you’ve colored or chemically treated hair that needs extra care.
What Is the Role of Serum in Maintaining Chemically Straightened Hair?
Serum for chemically straightened hair is a specialized hair product designed to provide moisture and protection. It typically contains ingredients that smooth the hair’s cuticle, reduce frizz, and enhance shine.
The American Academy of Dermatology defines serums as concentrated formulas that deliver active ingredients deep into the hair shaft for optimal results. They help maintain the desired style and texture after treatments like chemical straightening.
Chemically straightened hair can become dry and brittle due to the processing, which alters its natural structure. Hair serums provide essential nutrients and hydrate the hair, reducing the risk of damage and breakage. They create a barrier against environmental factors and heat styling.
According to the American Society of Trichology, hair serums often contain silicones, oils, and proteins that contribute to moisture retention and protection. These components are critical for maintaining the integrity of chemically treated hair.
Various factors affect chemically straightened hair, including humidity, environmental pollution, and improper aftercare. Neglecting these factors can exacerbate damage and lead to undesirable results.
Research by the International Hairdressing Foundation indicates that 70% of individuals with chemically treated hair experience dryness and frizz, highlighting the importance of using serums. Estimates suggest the serum market for hair care will expand by 20% over the next five years.
The broader consequences include reduced confidence levels in individuals due to hair damage. Maintaining healthy hair can influence social interactions and even professional opportunities.
Health impacts may arise from using low-quality serums, which could cause scalp irritation. Environmentally, the disposal of chemical-laden products can harm ecosystems. Economic implications include increased spending on hair care products to manage damage.
Examples include individuals using serums that contain natural oils, which can reduce chemical damage and enhance moisture. Brands focusing on eco-friendly ingredients also contribute to environmental sustainability.
To address the issue of dry, damaged hair, experts recommend choosing high-quality serums that include natural ingredients and are free from harmful chemicals. The Beauty Industry Council advises on regular use to restore hair health post-treatment.
Strategies include using heat-protectant serums before styling and choosing products with UV filters for added protection against sun damage. Implementing a regular deep conditioning routine enhances overall hair health and longevity.
How Does Serum Contribute to Shine and Smoothness in Chemically Straightened Hair?
Serum contributes to shine and smoothness in chemically straightened hair by providing moisture and reducing frizz. It contains ingredients like silicones, which coat the hair shaft. This coating smooths the cuticle, leading to a shinier appearance. The serum also creates a barrier against environmental damage, which helps maintain the hair’s sleekness. Additionally, serums often contain hair oils, like argan or jojoba oil, that nourish and hydrate the hair. This nourishment helps to restore softness and luster to chemically treated hair, enhancing its overall look and feel. Regular use of serum further protects hair from heat styling tools and promotes a healthy shine.
What Key Ingredients Should Be Present in a Serum for Chemically Straightened Hair?
The key ingredients that should be present in a serum for chemically straightened hair include moisturizing elements, heat protectants, smoothing agents, and nourishing oils.
- Moisturizing agents (e.g., hyaluronic acid, glycerin)
- Heat protectants (e.g., dimethicone, cyclopentasiloxane)
- Smoothing agents (e.g., silicones, keratin)
- Nourishing oils (e.g., argan oil, jojoba oil)
Different brands and products may emphasize various attributes, such as natural ingredients versus chemical formulations or focusing on lightweight versus deep-conditioning properties. Opinions may vary regarding the efficacy of silicone-based versus natural oil-based products. Some users may prefer serums with fewer chemical ingredients, while others appreciate the smoother finish provided by silicones.
With these points in mind, each key ingredient serves a specific purpose in maintaining the health and appearance of chemically straightened hair.
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Moisturizing Agents: Moisturizing agents, such as hyaluronic acid and glycerin, help to provide hydration. They attract moisture from the air and lock it into the hair shaft. Healthy, hydrated hair is less prone to damage and breakage, which is especially important for chemically treated hair. According to a 2019 study published in the International Journal of Cosmetic Science, glycerin significantly improves hair softness and manageability.
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Heat Protectants: Heat protectants, like dimethicone and cyclopentasiloxane, form a barrier that reduces damage from heat styling tools. They help to prevent moisture loss when exposed to high temperatures. A 2020 study from the Journal of Cosmetic Dermatology found that using heat protectants before styling can reduce hair breakage by up to 67%.
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Smoothing Agents: Smoothing agents such as silicones and keratin provide a silky and shiny finish. Silicones coat the hair and help to smooth the cuticle, preventing frizz and creating a polished look. Keratin, a fibrous protein, reinforces the hair structure and adds strength. Research published in the Journal of Biochemistry in 2018 demonstrates that keratin treatments can significantly enhance the elasticity and resilience of hair.
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Nourishing Oils: Nourishing oils like argan oil and jojoba oil penetrate the hair shaft and restore essential nutrients. These oils provide conditioning benefits while also offering a natural shine. The efficacy of argan oil is supported by a 2021 study in the Journal of Ethnopharmacology, which highlighted its antioxidant properties and impact on hair moisturization and health.
Incorporating these ingredients into a serum can help maintain the strength, shine, and health of chemically straightened hair, ensuring it remains beautiful and manageable.
How Do Silicone Compounds Help in Frizz Control for Chemically Straightened Hair?
Silicone compounds help control frizz in chemically straightened hair by forming a protective layer around each hair strand and improving moisture retention. This effectiveness can be broken down into several key points:
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Protective layer: Silicone compounds create a smooth barrier on the hair surface. This layer prevents external moisture from penetrating and causing frizz, thus maintaining a sleek appearance.
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Moisture retention: Silicones help to lock in moisture. By sealing the cuticles, they prevent water loss from the hair. This is crucial for keeping chemically straightened hair hydrated and reducing curl formation that leads to frizz.
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Smoothing effect: Silicones offer a silky texture by coating hair. This coating minimizes friction between hair strands, leading to less tangling and breakage, which can contribute to frizz.
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Heat resistance: Certain silicone compounds exhibit heat resistance. This allows the hair to withstand styling tools like blow dryers and straighteners without exacerbating frizz due to heat damage.
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Enhanced sheen: Silicone treatments provide a glossy finish. This shine can make hair appear healthier and reduces the visual impact of frizz.
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Compatibility with hair types: Silicones are suitable for many hair types. They work effectively on both coarse and fine hair, providing versatility in frizz control.
Studies, such as those conducted by Zoller et al. (2022), emphasize that silicone-based products significantly reduce frizz levels in treated hair compared to non-silicone formulations. Thus, silicone compounds serve multiple roles in maintaining smooth and manageable hair.
What Natural Oils Are Most Effective for Nourishing Chemically Straightened Hair?
Chemically straightened hair can benefit from natural oils that provide nourishment and moisture. The most effective natural oils for this purpose include:
- Argan oil
- Coconut oil
- Jojoba oil
- Olive oil
- Avocado oil
Different people might have varying opinions on the best oil to use. Some favor argan oil for its lightweight texture, while others prefer coconut oil for its deep conditioning properties. There are also those who believe that jojoba oil closely resembles natural hair sebum, making it a superior option. On the contrary, heavy oils like olive oil may weigh down fine hair types.
Natural oils vary in their composition and benefits, making them suitable for different hair types.
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Argan Oil: Argan oil nourishes chemically straightened hair. It is rich in vitamin E and essential fatty acids. These components help restore moisture and shine. A study by Zoubiri et al. (2018) highlights argan oil’s ability to reduce protein loss in hair.
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Coconut Oil: Coconut oil penetrates the hair shaft effectively. It contains lauric acid, which has a low molecular weight. This helps retain moisture within the hair. According to a 2003 study by the Journal of Cosmetic Science, coconut oil reduces hair loss and prevents damage through its unique structure.
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Jojoba Oil: Jojoba oil mimics the natural oils produced by the scalp. It provides moisture without leaving a heavy residue. Its balancing properties help regulate oil production, making it suitable for different hair types. Research by Zohra et al. (2017) supports jojoba oil’s effectiveness in maintaining hair health.
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Olive Oil: Olive oil is well-known for its moisturizing properties. It contains various antioxidants and vitamins that strengthen the hair. However, its heavier texture may not be ideal for all hair types, particularly fine hair. The benefits of olive oil for hair were discussed in a study published in the International Journal of Biological Macromolecules (2020).
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Avocado Oil: Avocado oil is rich in vitamins A, D, and E. It enhances hair elasticity and nourishes dry strands. Its lightweight consistency makes it a good choice for many hair types. A study conducted by Manjula et al. (2019) shows that avocado oil promotes hair growth and scalp health.
Using these natural oils can significantly improve the condition of chemically straightened hair by providing nourishment and promoting overall hair health.
How Often Should You Apply Serum for Optimal Maintenance of Chemically Straightened Hair?
You should apply serum for optimal maintenance of chemically straightened hair at least every time you wash your hair. This typically means using serum two to three times per week. Serum hydrates and protects your hair from damage. Apply a small amount to damp hair, focusing on the ends. For added moisture, apply serum daily or whenever your hair feels dry. Adjust the frequency based on your hair’s needs and environmental factors, such as humidity. Regular application helps maintain shine and reduces frizz on chemically straightened hair.
What Are the Top Recommended Serums for Chemically Straightened Hair?
The top recommended serums for chemically straightened hair often include nourishing and moisturizing products that protect the hair from damage.
- Moroccan Oil Treatment
- Kerastase Elixir Ultime
- Olaplex No. 7 Bonding Oil
- Paul Mitchell Super Skinny Serum
- L’Oréal Mythic Oil
- Redken Frizz Dismiss Instant Shine
Different perspectives exist regarding the preferences for particular serums. Some users prioritize moisture and repair, while others focus on frizz control and thermal protection.
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Moroccan Oil Treatment:
Moroccan Oil Treatment is a versatile serum that contains argan oil. Argan oil is rich in fatty acids and vitamin E, which provide hydration and shine. This oil can help to smooth hair, reduce frizz, and enhance elasticity. According to a study published in the International Journal of Trichology, argan oil can restore moisture, making it beneficial for chemically treated hair. -
Kerastase Elixir Ultime:
Kerastase Elixir Ultime combines a blend of four oils: argan, camellia, corn germ, and Pracaxi. This unique combination provides nourishment and protection against heat damage. A survey conducted by the Professional Beauty Association found that users appreciated its lightweight texture and ability to add shine without weighing hair down. -
Olaplex No. 7 Bonding Oil:
Olaplex No. 7 Bonding Oil serves a dual purpose: it repairs damaged bonds while providing heat protection up to 450°F. Its lightweight formula is ideal for chemically treated hair, promoting strength and managing frizz. Research from an independent study indicates that products containing bond-building technology can lead to healthier hair over time. -
Paul Mitchell Super Skinny Serum:
Paul Mitchell Super Skinny Serum is known for its fast-absorbing properties and ability to reduce drying time. It contains silicone derivatives that help smooth and control frizz. According to user testimonials, the serum not only reduces frizz but also adds a silky finish, making it a favorite among many. -
L’Oréal Mythic Oil:
L’Oréal Mythic Oil is a blend of avocado and grape seed oils, providing deep nourishment and shine. It is effective in controlling frizz and enhancing manageability. A beauty review website noted that users appreciated the non-greasy formulation, which delivered hydration without buildup on the hair. -
Redken Frizz Dismiss Instant Shine:
Redken Frizz Dismiss Instant Shine is designed to eliminate frizz while offering shine and softness. It is specifically formulated to work well with chemically treated hair. According to a report by Redken, 85% of users experienced a significant reduction in frizz after consistent use, highlighting its effectiveness in restoring hair’s natural smoothness.
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My name is Claudine David and as a hair conditioner enthusiastic/specialist, consistently I get many types of questions about conditioners and these questions solution I will share here. Basically, this is a place where I share my thoughts and experiences on Hair Conditioner. This website (https://conditionerhacks.com) is an outlet of my deep passion for Conditioner.
Specifically I specialize in hair conditioners. I have been working in the field of hair care for over 6 years. Basically my passion for hair care started when I was a young girl. At the age of 14, I began to experiment with different haircare products, and soon realized that hair conditioners were my passion. I’m always looking for the best and most innovative products. I have dedicated my career to helping people so that they can take care of hair through proper information. Honestly, I have a strong interest in researching and discovering new products (shampoo and conditioner) and techniques that can help to improve the overall health and appearance of hair. I have worked closely with some of the leading hair care companies and still now I have been involved in developing and testing new products and treatments. I have also worked with a number of salons and retail stores. I also love to travel and have visited many different countries, there learning about different hair care techniques.