Best Keratin Hair Relaxers of 2025

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Keratin hair relaxers are a popular choice for those looking to straighten their hair without the harsh chemicals of traditional relaxers. These products use keratin, a protein found naturally in hair, to smooth and straighten strands. They work by breaking down the hair's natural curl pattern and sealing in the straighter shape. Keratin hair relaxers can last anywhere from three to six months and are suitable for all hair types. They can also help to reduce frizz and improve the overall health and appearance of hair.
At a Glance: Our Top Picks
Top 8 Keratin Hair Relaxers
ANSWR At-Home Keratin Treatment Kit
The ANSWR Keratin Treatment Kit offers a complete at-home salon experience, allowing you to achieve smooth, salon-quality hair without the high costs of a professional visit. This award-winning kit includes a specialized shampoo and conditioner to help maintain your results. With just one application, you can enjoy long-lasting frizz control, sealing cuticles and enhancing shine for up to three months. Plus, the formula is vegan and cruelty-free, so you can feel good about using it on any hair type, as it is free from harsh chemicals like formaldehyde and sulfates.
SoftSheen-Carson Triple Nourished Silkening Relaxer Kit
SoftSheen-Carson Dark and Lovely Triple Nourished Silkening Relaxer No-Lye Regular Strength with Shea Butter, Jojoba and Avocado Oils is the next generation in healthy relaxing. It helps preserve the 5 signs of healthy hair: Moisture, Shine, Strength, Softness and Body for fine to regular hair. The kit features 3 new components including Moisture Conditioner, Moisture Hair Crème and Silk Keratin Serum for softness and body. Softsheen-Carson has provided beauty to African descent consumers for over 110 years with innovative, superior products specially designed for their needs.
Ritual Botanico Organic Keratin 250ml
Ritual Botanico Keratin Relaxer offers a 250ml kit with organic, vegan formula free of harsh chemicals like ammonia and formaldehyde. Infused with natural oils like argan and macadamia, along with aloe vera and green tea extracts, this product results in smooth, soft, and frizz-free hair with added shine for up to 3 months. Ideal for wavy, curly, dry, or damaged hair, it provides manageable hair texture. The kit includes shampoo, keratin treatment, and bilingual instructions for easy application at home.
ANSWR At-Home Keratin Treatment
The ANSWR Keratin Treatment offers an easy way to achieve salon-quality hair right at home. In just 60 minutes, you can enjoy smooth, shiny hair for up to three months, all without the harsh chemicals found in traditional treatments. This product is made with vegan keratin from wheat and soy, providing effective frizz control while being cruelty-free. It's gentle enough for all hair types, including color-treated hair, ensuring deep nourishment and hydration. With its special formula, you'll repair and strengthen your hair from within, leaving it looking sleek and healthy.
Keratinex Anti Breakage Hair Relaxer Cream
Keratinex Relaxer Cream is a Dominican Republic-made product that contains Keratin and Omega 3 to give you strong, shiny, and healthy straight hair. Its no-lye regular formula helps reduce frizz, making your hair more manageable. With this product, you can enjoy the benefits of nourishing ingredients that promote hair strength, shine, and overall health.
D'D&A No-Lye Relaxer with Keratin
The D'D&A No-Lye Relaxer is a user-friendly cream specially formulated for hair that has been previously relaxed. It combines nourishing ingredients like keratin, shea butter, and olive extract to help maintain your hair's health and moisture. You will appreciate the quick processing time of just 15-20 minutes, allowing you to achieve optimal results without spending too much time. This product comes with six pre-measured applications, making it easy to achieve a full head or touch-up without the hassle of measuring out product yourself.
PURC PURE Keratin Treatment
PURC Keratin Hair Treatment offers an effective solution for those struggling with frizz and unruly curls. This treatment not only straightens your hair for up to six months but also revitalizes and repairs damaged strands, leaving your hair healthier. If you find your hair too voluminous, this product helps tame the excess, giving you a polished look. Plus, with its clean, natural ingredients, you can feel good about what you're putting on your hair. It’s suitable for all hair types, making it easy for you to enjoy a stunning transformation.
KASHMIR KERATIN Hair Treatment 33.8oz
KASHMIR KERATIN Treatment offers a powerful solution for achieving smooth, frizz-free hair. This deep conditioning treatment works from the inside out, repairing your hair’s structure for lasting health and strength. You can enjoy temporary straightening effects for up to five months, making it perfect for tackling stubborn curls. With its formaldehyde-free formula, you can feel safe using it at home without worrying about harmful fumes. Lastly, you can wash your hair immediately after application, giving you the freedom to style your hair right away.
Frequently Asked Questions (FAQs)
1. Is keratin relaxer good for hair?
"Keratin is great for those who have frizzy hair and want long-term straight and smooth hair," she says. "The chemicals with keratin are a little less harmful than those found with other straightening treatments, like a relaxing treatment, which is very harsh."
2. Which is better relaxer or keratin?
Keratin treatment minimizes frizz and gives lustrous hair, lasting for 3-6 months. In relaxers, the structure of the hair is altered with special chemicals to give you silky, glossy hair. Keratin treatment lasts for 3 to 6 months, while relaxers last for 6 to 8 weeks, depending on hair care habits.
3. How long does keratin relaxer last?
As long as you care for a keratin treatment by not washing your hair too frequently (2 to 3 times a week is enough), then your keratin treatment can last up to 6 months.
4. What is the difference between hair relaxing and keratin treatment?
The most significant difference in hair relaxing vs hair smoothing results is that a formaldehyde-free keratin treatment will keep natural curls and waves while a chemical relaxer will entirely remove curls for a period of time.
During our keratin hair relaxer research, we found 48 keratin hair relaxer products and shortlisted 8 quality products. We collected and analyzed 47,324 customer reviews through our big data system to write the keratin hair relaxers list. We found that most customers choose keratin hair relaxers with an average price of $15.85.
The keratin hair relaxers are available for purchase. We have researched hundreds of brands and picked the top brands of keratin hair relaxers, including ANSWR, SoftSheen-Carson, Ritual Botanico, Keratinex, D'D&A.

Lisa Bechard is a skin therapist with 12 years of working experience in the beauty industry and also an experienced beauty writer who has expertise in skincare, medical aesthetics and cosmetic surgery, and wellness. Her writing skills are excellent and all her content is very persuasive and insightful.