The 4-night protocol for more radiant skin

The 4-night protocol for more radiant skin

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lactic acid

Commonly known as: Acide lactique, Acide 2-hydroxypropanoïque.
I.N.C.I. list name: Lactic Acid.
Extraction process: Fermentation du sucre présent dans les graines de maïs en utilisant des bactéries spécifiques telles que Lactobacillus.
Source: Végétale.
Botanical name: Zea mays (maïs).
Family: Poacées.
Part of the plant extracted: Graines.
Provenance, origin: France.
Chemical characteristics: Acide alpha-hydroxylé (A.H.A.) ; Soluble dans l'eau, la glycérine et l'alcool ; Insoluble dans l'huile ; Densité = 1,1 - 1,25 g/cm3 ; Masse molaire = 90,08 g/mol ; pH supérieur à 3,5.
Characteristics: Emulsion, solution colloïdale, solution vraie aqueuse.
Dosage required in cosmetic products: 0,3% au minimum ; En tant qu'exfoliant, l'acide lactique est autorisé à une concentration maximale de 10% dans un produit cosmétique.
Function: Ajusteur de pH (acidifiant), humectant, agent d'entretien de la peau.
Properties: Kératolytique, astringente, hydratante, séborégulatrice, acidifiante.
Benefits: Tous les types de peau surtout les peaux matures, les peaux sèche, les peaux mixtes à grasses, les grains de peau irrégulier (comédons, pores dilatés, taches brunes, etc...) et les peaux ternes ; Tous les types de cheveux en particulier les cuirs chevelus avec des pellicules, les cuirs chevelus à tendance grasse et les cheveux ternes.

Details

Use

  • Facial care (exfoliating products, peelings, purifying creams and lotions, cleansing gels, masks, eye contour creams, scrubs);

  • Body care (body milks, foot and hand masks);

  • Hair care (anti-dandruff shampoos, purifying hair masks, detanglers);

  • Hygiene (shower gels)

Preservation

Store at room temperature away from light, moisture and heat.

Contra-Indications and Precautions

With a use once or twice a week, it generally presents no danger. However, it may cause allergic reactions or irritation. Avoid contact with eyes, in case of contact rinse thoroughly with water.

Lactic acid is photosensitizing, which means that it increases the skin's sensitivity to sunlight. After using lactic acid and for a week afterwards, you should not go out in the sun unless you use a broad-spectrum sunscreen with a high sun protection factor, wear protective clothing and limit your exposure to the sun as much as possible. Preferably, apply a lactic acid treatment in the evening before bedtime.

Do not combine this active ingredient with a product containing salicylic acid or glycolic acid.

Find out more

Lactic acid is known for its exfoliating effect on the surface layers of the skin. This AHA allows the elimination of the dead cells of the epidermis in order to make the skin of the face smoother, bright and uniform. This molecule, which is larger than the glycolic acid molecule, penetrates less deeply into the epidermis and is therefore less irritating than the latter. Lactic acid is thus an excellent alternative for skin that has not tolerated glycolic acid products.