Glycolic acid hair mask

Regular price: €22,90
Regular price
Sale price: €22,90

Size 300 ml

Description

Intense hydration, spectacular shine. Awaken your hair's glow with a formula designed to transform your hair from the first use. Our Glycolic Acid Hair Mask is the ultimate solution for hydrating, repairing, and revitalizing all hair types with an instant WOW effect.

Contains 10% pure glycolic acid, a powerful active ingredient that smooths the cuticle, improves nutrient absorption, and reduces dryness and frizz. Its lightweight, highly penetrating texture is enhanced with white truffle extract, rich in antioxidants and essential nutrients that strengthen and restore the hair fiber.

The result: visibly shinier, silkier, and healthier hair from the first application. Start your shine protocol now.

Main benefits

Transform your routine with a deep dose of hydration and shine from the first use. This mask repairs hair from within, leaving it softer, stronger, and visibly silky.

Helps control frizz, soothes sensitive scalps, and protects against the effects of the sun and pollution.

The perfect ally to restore your hair's vitality, shine, and natural health.

90% Hydration and softness.
80% Elasticity and shine.
75% Maneuverability.
85% Less frizz and breakage.

A study involving 20 volunteers, evaluated by I+D+i technicians, followed four weeks of use.

MAIN INGREDIENTS

Our mask combines natural active ingredients and plant proteins that hydrate, strengthen, and soothe hair. Enriched with vitamins C, B2, B3, B9, and hydrolyzed keratin, it repairs from within and protects against environmental damage, sun, pollution, and heat.

-> Glycolic Acid - removes heavy residue from the hair, and laminates the cuticle with long-lasting shine.
-> Vitamins - deeply repairs and protects against environmental damage.
-> White truffle - rich in antioxidants, it promotes the penetration of active ingredients into the hair strand.

HOW TO USE THE PRODUCT?

1-> After shampooing your hair, apply the Glycolic Acid Mask to damp hair from mid-lengths to ends.

2-> Perform a light massage and distribute the product evenly.

3-> Leave on for 10 minutes and rinse. Use two to three times a week for best results.

Recommendation: For a complete routine, use the daily care shampoo line, choosing the one best suited to your hair type. Apply Night Vitamins, formulated to boost cell recovery and improve nutrient absorption while you sleep.

INGREDIENTS

AQUA (WATER), CETYL ALCOHOL, CETRIMONIUM CHLORIDE, DIMETHICONE, BIS-CETEARYL AMODIMETHICONE, GLYCOLIC ACID, PARAFINUM LIQUIDUM, PROPYLENE GLYCOL, CETEARETH-7, CETEARETH-25, CITRIC ACID, TUBER MELANOSPORUM EXTRACT, PHENOXYETHANOL, BENZOIC ACID, DEHYDROACETIC ACID, POTASSIUM SORBATE, HEXAMETHYLINDANOPYRAN, HEXYL CINNAMAL, TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES, PARFUM (FRAGRANCE).

Shipping Information

Shipping Time:

We will ship your order within 24-72 business hours in mainland Spain and 5-7 business days to the rest of the world.

Shipping Costs:

Domestic: Free shipping on orders over €40 in mainland Spain and the Balearic Islands.

For orders under €40, a €4.99 VAT charge will be added.

European Union: €15 VAT included.

Rest of the world: €60

FREE SHIPPING +40 € (PENINSULAR SPAIN AND BALEARIC ISLANDS)

FREE RETURNS WITHIN 30 DAYS

100% SECURE PAYMENT

Before and after

Before

After

FREQUENTLY ASKED QUESTIONS

What does glycolic acid do for hair?

Glycolic acid hydrates hair and improves its elasticity, making it stronger and less prone to breakage. It smooths the hair cuticle, reducing frizz and adding shine. It also helps other ingredients penetrate the hair fiber better, enhancing the effects of the treatment.

Is it safe for all hair types?

Yes. It is designed for all hair types, including color-treated, sensitized, or frizzy hair.

How long should it be left to act?

10 minutes, so that the glycolic acid and natural active ingredients penetrate deeply.

How many times a week can it be used?

Between 2 and 3 times a week, depending on the level of dehydration or hair damage.

How many times a week can it be used?

Deep hydration, immediate shine, softness and frizz reduction.

Is it good for restoring hair after summer or excessive use of straighteners?

Yes. Its formula with glycolic acid and white truffle helps repair, hydrate, and restore shine to hair damaged by the sun, the sea, or the heat of thermal styling tools. It's the perfect ally to restore life and softness to your hair when it needs it most.

Can it be used alongside keratin or straightening treatments?

Yes. It's compatible with treatments like keratin, as it doesn't contain sulfates or salts. In fact, it enhances the effects of these treatments by keeping hair hydrated, soft, and manageable.

Is it necessary to use heat for the mask to work better?

It's not essential, but applying moderate heat (such as wrapping your hair in a hot towel) can enhance the penetration of active ingredients and maximize their benefits, especially on very dry or damaged hair.

Why trust The Cosmetic Republic?

Toxic-free
Not tested on animals
Natural ingredients
Approved by experts

Let customers speak for us

from 113 reviews

Muy buena idea.

Concha

05/25/2026

Difusor de fibras

Funciona perfecto. Mención especial al servicio de atención al cliente que ha respondido súper bien y rápido. Había comprado el color equivocado y me mandaron el correcto sin coste, tal y como se anuncia.

Sol W

05/19/2026

Difusor de fibras

Espectacular!

Mónica

05/12/2026