Based on its formula, is this shampoo safe for sensitive or dry hair?

The formula is sulfate-free and contains conditioning agents such as panthenol, avocado oil and cocoa butter that are gentle for dry hair, but it also includes synthetic surfactants (sodium C14-16 olefin sulfonate, cocamidopropyl hydroxysulfaine), fragrance and colorants that can irritate very sensitive scalps, so most users will tolerate it while highly reactive individuals should patch-test before use.

What is the specific role and benefit of keratin in this shampoo?

Keratin is a structural protein that reinforces the hair cuticle, reduces frizz, and improves elasticity; the hydrolyzed keratin in this shampoo penetrates the shaft to smooth and strengthen strands, resulting in a sleeker, straighter appearance.

What is the optimal application frequency for this shampoo, and does it contain controversial chemicals?

For best results the shampoo can be used 2-3 times weekly or daily if maximum smoothing is desired, and it does contain silicones (dimethicone, amodimethicone), synthetic fragrance and artificial colorants (Red 40, Yellow 5, Blue 1), which some consumers consider controversial but are permitted in cosmetics.

OGX • 385ml - Pluizig of krullend haar

OGX Brazilian Keratin Smooth & Sleek Shampoo

Hair

Product Insights

OGX Brazilian Keratin Smooth & Sleek Shampoo is a sulfate-free, salon-style cleanser formulated to straighten and add shine to wavy or curly hair. The blend of hydrolyzed keratin, avocado oil, coconut oil, cocoa butter and panthenol works to strengthen, moisturize and smooth the hair shaft, delivering a glossy, sleek finish. Nevertheless, the product is classified as NOVA 4, reflecting a highly processed composition that includes synthetic surfactants, fragrance, silicone polymers (dimethicone, amodimethicone) and artificial colorants, which may cause irritation or buildup for sensitive scalps.

Comparative Analysis

Positioned in the premium smoothing-hair segment, this OGX Brazilian Keratin Smooth & Sleek Shampoo leverages a keratin, avocado and cocoa butter complex to provide straightening and high shine while remaining sulfate-free, distinguishing it from ordinary cleansers despite its inclusion of silicones and synthetic dyes.

Ingredients

Aqua/Water/Eau, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysulfaine, PPG-2 Hydroxyethyl Coco/Isostearamide, Sodium Chloride, Hydrolyzed Keratin, Cocos Nucnera Coconut/Noix De Coco) Oil, Persea Gratissima (Avocado/Avocat) Oi, Theobroma Cacao Cocoa/Cacao) Seed Butter, Panthenol, Dimethicone, Amodimethicone, Guar Polyquaternium-6, Hydroxypropyltrimonium Chloride, Polyquaternium-10, Laureth-4, Laureth-23, Diazoldinyl Butylcarbamate, Urea, Glycol Distearate, PEG-120 Methyl Glucose Dioleate, Cocamidopropyl Betaine, Trideceth-12, Cetrimonium Chloride, Sodium Hydroxide, Propylene Glycol, Citric Acid, Sorbitan Laurate, Tetrasodium EDTA, lodopropynyl Phenoxyethanol, CI 16035/Red 40, Cl 19140/Yellow 5, Parfum/Fragrance, 19140/Yellow 5, CI 42090/Blue 1

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