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Citric Acid

Commonly known as: Citric Acid Monohydrate, 2-Hydroxypropane-1,2,3-tricarboxylic Acid, 3-Carboxy-3-hydroxypentanedioic Acid.

I.N.C.I. list name: Citric Acid.

Extraction process: Microbial fermentation (Aspergillus niger) of glucose syrup derived from corn.

Source: Plant-based.

Botanical name: Zea mays.

Family: Poaceae.

Extracted part of the plant: Corn starch.

Origin, provenance: China, Austria.

Chemical properties: Alpha-hydroxy tricarboxylic acid (AHA); Molecular mass: 192.124 g/mol; Soluble in water and alcohol; Insoluble in oil; Density: 1.542 - 1.665 g/cm3.

Properties: Emulsion, true aqueous solution.

Required dosage in cosmetic products: /

Function: pH regulator, chelating agent, masking agent.

Specificities: Keratolytic, moisturising, antioxidant, astringent, acidifying, effervescent.

Benefits: All skin types, particularly dull skin, those prone to blemishes and those with superficial marks left by a spot; All hair types, especially dull hair.

Details

Usage

Facial Care (lotions, moisturising creams, serums, makeup removers, cleansing gels, masks, eye contour treatments, lash serums/gels);
Body Care (body creams, after-sun lotions, sun creams/sprays, self-tanners, hand creams);
Haircare (shampoos);
Hygiene (shower gels/foams/creams, mouthwashes, toothpastes, bath bombs/effervescent tablets, deodorants).

FIRMNESS/RADIANCE

A33 — Hyperpigmentation and firming serum
Tranexamic acid 5% + tetrapeptide — from £34.90

Best-seller

L31 — Gradual Self-Tanning Serum
10% DHA + Carob Pulp Extract — from £24.90

Plumping

A32 — Plumping Serum
with Polyglutamic Acid 3% + Red Seaweed Extract — from £24.90

Anti-marks

L64 — Anti-mark serum
PHA 14% + centella asiatica — from £24.90

Purifying

L12 — Purifying Cleansing Gel
with 2% Zinc PCA + Bamboo Extract — £25.50

Exfoliating

L13 — Exfoliating Gel Cleanser
with 5% PHA + Aloe Vera — £24.50

Fortifying

L37 — Eyebrow & Eyelash Serum
with 2% Pea Peptides + Castor Oil — £23.90

Best-seller

L61 — Targeted Blemish Serum
with 2% Salicylic Acid + 1% Zinc — from £16.90

Anti-redness

L36 — Even-Complexion Serum
with 12% Niacinamide — from £19.50

6 shades

Tinted Concealer — £26.50

Best-seller

L33 — Eye Serum
with 5% Caffeine + 5% Niacinamide — from £17.90

Mattifying

L35 — Mattifying Serum
with 10% Azelaic Acid — from £19.50

HYDRATING

A31 — Hydrating Serum
with 3% Hyaluronic Acid + 2% B5 — from £17.90

Discontinued

Nourishing body cream
10% Squalane + Shea Butter — £21.50

Method of Preservation

Store in a dry place, at a temperature not exceeding 30°C and at a humidity level below 70%. Avoid excessive heat for extended periods.

Contraindications, Usage Precautions

Citric acid is a safe-to-use ingredient. However, it can cause some skin irritations. Avoid direct contact with the eyes and never use it undiluted on the skin.

Citric acid can have a photosensitising effect on the skin when present in high percentages. That's why it's recommended to use a suitable sun protection during the day. As a cosmetic active, it is preferable to use it preferably in the evening. Finally, combining it with other acids (salicylic acid, glycolic acid, etc...) is not recommended.

Citric acid is a plant-derived acid found in a wide variety of fruits and vegetables, particularly in citrus fruits (limes, lemons, strawberries, pineapples, oranges, etc...). It was first isolated from lemon juice in 1784 by the Swedish chemist Carl Wilhelm SCHEELE, hence its name. Today, it is primarily produced through biotechnology or by using a fungus (Aspergillus niger) through the fermentation of a sugary solution. Although it is mainly used to adjust the pH of cosmetic preparations and to prepare effervescent products, citric acid is also used as a cosmetic active ingredient. Indeed, it is valued for its keratolytic and astringent effects, promoting cellular renewal and the elimination of dead cells. It thus provides a radiant boost to the skin.