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Gluconolactone

Commonly known as: Gluconolactone, D-Glucono-1,5-lactone, D-gluconic acid delta-lactone, Glucono-delta-lactone.

I.N.C.I. list name: Gluconolactone.

Extraction process: Oxidative fermentation of glucose syrup derived from corn or beet/sugar cane sugar using a fungal strain (Aspergillus niger), followed by several stages of purification.

Source: Plant-based (corn).

Botanical name: Zea mays (corn).

Family: Poaceae.

Part of the plant extracted: Seeds.

Provenance, origin: Austria, France.

Chemical characteristics: Polyhydroxy Acid (P.H.A.); a Lactone (cyclic ester) derived from gluconic acid; a white, odorless crystalline powder; soluble in water and ethanol; molecular weight = 178.15 g/mol; density: 1.720 g/cm3.

Characteristics: Emulsion, colloidal solution, true aqueous solution.

Dosage required in cosmetic products: As a moisturizing agent: 2 - 4% and a pH of 5.5; As a photoprotective agent: 4 - 8% and a pH of 5.5; As an exfoliating agent: 7 - 15% and a pH of 3.8; As a chelating agent: 2%; As a pH regulator or buffering agent: 0.1 - 2%.

Function: Chelating agent, skin conditioning agent.

Properties: Keratolytic, moisturizing, photoprotective, solvent, antioxidant, soothing, chelating, anti-inflammatory, preservative.

Benefits: All skin types, particularly those with imperfections (such as comedones, etc...), acne-prone skin, mature skin, dull skin, and pigmented skin; All hair types, especially those with a scalp presenting dandruff.

Details

Usage

Facial Care (face serums, masks, cleansing gels, toning lotions, peelings, scrubs, tinted serums, moisturizing creams); Body Care (washing gels, peelings, hand and foot creams, scrubs); Hair Care (conditioners, exfoliating gels, scalp serums).

Exfoliating

Exfoliating Cleansing Gel

with 5% PHA + Aloe Vera — $34.50

Anti-marks

Anti-Mark Serum

with 14% PHA + Centella Asiatica — from $33.90

Exfoliating

Exfoliating Mask

with Organic Red Fruit Acids — $39.90

Method of Preservation

Store at room temperature in a dry and cool place, protected from light, moisture, and heat.

Contraindications, Usage Precautions

There are no contraindications. The gluconolactone-based treatments can be applied on all skin types, even the most sensitive and reactive skins. Indeed, unlike A.H.A. (glycolic acid, lactic acid, etc...) and B.H.A. (salicylic acid, etc...), gluconolactone has a larger molecular size; therefore, it penetrates less deeply into the epidermis and consequently reduces the irritating side effects that we can encounter with A.H.A and B.H.A. However, as a precaution, we advise you to perform a skin tolerance test in the crook of your elbow before using this active ingredient daily for 24 hours. Unlike other hydroxy acids, PHAs (gluconolactone) are not photosensitizing.

Find out more

Gluconolactone is an organic acid that belongs to the category of polyhydroxy acids (P.H.A.). It is found in nature, particularly in honey, fruit juices, and wine in small quantities. Initially used in the food industry as an additive, it is also widely used as a functional ingredient in cosmetic products. Gluconolactone is composed of a lactonic core that, under the hydrolytic action of skin moisture, releases gluconic acid, which is responsible for the molecule's activity. It also possesses numerous hydroxyl groups (-OH).