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L'Oreal Professionnel Paris

L'Oréal Professionnel Paris Keratin Alpha Sleek Serum, 1.6 fl oz/50 mL

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Product is rated SkinSAFE 91

Product is 91% free of the top 11 most common allergens, as determined by Mayo Clinic Research

SkinSAFE 91
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Reviewed Ingredient information last updated on Aug 30, 2026 by SkinSAFE Team

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Product is rated SkinSAFE 91

Product is 91% free of the top 11 most common allergens, as determined by Mayo Clinic Research

SkinSAFE 91
Learn More About SkinSAFE Ratings
Reviewed Ingredient information last updated on Aug 30, 2026 by SkinSAFE Team

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How Safe is It?

Product Is
91 SkinSAFE 91 Teen SAFE Talc Free Common Preservative Free Paraben Free Lanolin Free Coconut Free Topical Antibiotic Free MCI/MI Free Nickel Free Gluten Free Soy Free Propylene Glycol Free Oil Free Irritant Free Dye Free SLS Free
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Ingredients

bis-(Morpholinomethyl C1-4 Dialkoxysiloxy) Dimethicone Bis-Cetearyl Amodimethicone Citronellol Dimethicone Geraniol Linalool Parfum / Fragrance
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Description

Ingredient & Allergen Review

SkinSAFE has reviewed the ingredients of L'Oréal Professionnel Paris Keratin Alpha Sleek Serum, 1.6 fl oz/50 mL and found it to be 91% Top Allergen Free and free of Gluten, Coconut, Nickel, Top Common Allergy Causing Preservatives, Lanolin, Paraben, Topical Antibiotic, MCI/MI, Soy, Propylene Glycol, Oil, Irritant/Acid, Dye, and SLS. Product is Teen Safe.

Product Description

A heat-activated leave-in serum that seals the hair's structure for up to 10 washes of smoothness, frizz control, and humidity protection.

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