Is Garnier Keratin Sleek suitable for sensitive or dry scalp and hair types?

The treatment is formulated for normal to dry hair and provides moisture from plant oils and conditioning agents, but the added fragrance and preservatives can irritate very sensitive scalps, so a patch test is recommended.

What benefits does hydrolyzed corn protein provide in this hair treatment?

Hydrolyzed corn protein is a low‑molecular‑weight keratin derivative that penetrates the hair cuticle, fills gaps, and improves elasticity and smoothness, helping to reduce breakage and frizz.

How often should Garnier Keratin Sleek be applied, and does it contain any controversial ingredients?

Apply the product 2–3 times per week to damp hair after shampooing, leave on for a few minutes, then rinse; it contains phenoxyethanol, benzoic acid and a fragrance blend (linalool, amyl cinnamal, hexyl cinnamal) that some consumers consider controversial due to irritation potential.

L'Oréal, L'Oreal Consumer products, Garnier • 370ml

Keratin sleek

Hair

Product Insights

Garnier Keratin Sleek is a vegan, cruelty‑free hair‑care smoothing treatment sold in Canada in a 370 ml bottle. Its formula blends conditioning agents such as cetearyl alcohol and stearamidopropyl dimethylamine with plant oils (argan, sunflower, shea butter) and hydrolyzed corn, soy and wheat proteins to add shine and strengthen the hair shaft. However, the presence of fragrance components (including linalool, amyl cinnamal, hexyl cinnamal), phenoxyethanol and benzoic acid may cause irritation for very sensitive scalps or fragrance‑allergic users.

Comparative Analysis

In the crowded hair‑smoothing market, this product stands out by offering a keratin‑protein boost combined with vegan, cruelty‑free plant oils, differentiating it from many silicone‑heavy conditioners.

Ingredients

AQUA/WATER, CETEARYL ALCOHOL, STEARAMIDOPROPYL DIMETHYLAMINE, ISOPROPYL MYRISTATE, CETYL ESTERS, HELIANTHUS ANNUUS SEED OIL/SUNFLOWER SEED OIL, ARGANIA SPINOSA KERNEL OIL, BUTYROSPERMUM PARKII BUTTER/SHEA BUTTER, HYDROLYZED CORN PROTEIN. HYDROLYZED SOY PROTEIN, HYDROLYZED WHEAT PROTEIN, CAPRYLYL GLYCOL, CITRIC ACID, TARTARIC ACID, PHENOXYETHANOL, BENZOIC ACID, LINALOOL, AMYL CINNAMAL, HEXYL CINNAMAL, BENZYL ALCOHOL PARFUM/FRAGRANCE.(F.I.L. 270055972/1).

84%

35%

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