KÉRASTASE Specifique Potentialiste Scalp Serum 3.04 fl oz — Lightweight Hydrating Vitamin C & Prebiotic Gel

KÉRASTASE Specifique Potentialiste is a lightweight, fast-absorbing scalp serum that hydrates, soothes sensitivity, and helps protect the scalp barrier from external aggressors.

Designed for any scalp type—normal, dry, oily or sensitive—this gel-textured serum combines microbiome-focused ingredients with Vitamin C and Bifidus prebiotic to rebalance and comfort the scalp. It absorbs quickly without rinsing, leaving a refreshed feel while supporting healthier roots and hair over time. The formula is sulfate-free and built to work alongside other Specifique products for a targeted scalp routine.

How does this serum calm scalp sensitivity and discomfort?

The Potentialiste serum contains a prebiotic ingredient (Bifidus) and soothing components that help reinforce the scalp’s protective layer and reduce the feeling of irritation. Its gel-like texture delivers active ingredients directly to the skin while avoiding heavy residue.

• Prebiotic Bifidus to support the microbiome balance
• Fast-absorbing gel for quick comfort without greasiness
• Helps fortify the scalp barrier to lower sensitivity over time

Will this serum add weight or oil to my hair?

No—its ultra-light formula is formulated to hydrate the scalp without weighing down strands. Applied sparingly at the roots, it leaves hair feeling natural and non-greasy while addressing scalp needs.

• Gel texture that penetrates without coating hair
• Recommended three doses per application to avoid excess
• Sulfate-free base that pairs with regular hair care products

How should I use the serum in my weekly hair care routine?

Apply the serum to a dry or towel-dried scalp, targeting areas of sensitivity or imbalance. Dispense approximately three doses, massage gently to distribute, and do not rinse; follow with styling as usual.

• Use after cleansing with a Specifique shampoo for best results
• Can be used regularly until scalp comfort and balance improve
• In case of eye contact, rinse immediately; product color change does not affect performance

What active ingredients make this an effective scalp treatment?

Key actives include Vitamin C for protection against environmental stressors, Bifidus prebiotic to nurture the microbiome, plus ceramides, amino acids and vitamin B6 to strengthen and hydrate the scalp. These elements work together to support a healthier scalp environment and more resilient roots.

• Vitamin C to help defend against external aggressors
• Bifidus prebiotic to maintain microbiome equilibrium
• Ceramides, amino acids, and vitamin B6 to reinforce scalp health

Who is this for: KÉRASTASE Specifique Potentialiste is suited to anyone seeking a non-greasy, science-driven scalp serum—people with dry, oily, sensitive, or balanced scalps who want hydration, reduced sensitivity, and a strengthened scalp barrier. It complements regular shampoo and masque steps in the Specifique line and is ideal for those who prefer lightweight, fast-absorbing treatments that won’t weigh hair down.

Ingredients

Aqua/Water/Eau, Alcohol Denat., Bifida Ferment Lysate, Ascorbyl Glucoside, Aminomethyl Propanol, Peg-40 Hydrogenated Castor Oil, Carbomer, Mannose, Polysorbate 21, Alpha-Glucan Oligosaccharide, Phenoxyethanol, Glycerin, Pentylene Glycol, Polymnia Sonchifolia Root Juice, Faex Extract/Yeast Extract/Extrait De Levure, Sodium Benzoate, Maltodextrin, Limonene, Geraniol, Hexyl Cinnamal, Benzyl Benzoate, Benzyl Alcohol, Lactobacillus, Linalool, Citral, Parfum/Fragrance. C258427/1.