Preservative Grapefruit Seed Extract

Preservation of all cosmetic products containing an aqueous phase (water, hydrosol, etc.)

• Preservation of emulsions (creams, milks)

• Preservation of cleansing products (shampoos, shower gels, makeup removers)

• Preservation of aqueous gels and lotions

This version of Grapefruit Seed Extract is for cosmetic preservative use only; it is not suitable for internal use or for use undiluted on the skin.

This extract is a preservative for cosmetic use and is intended exclusively for this purpose. It has no documented therapeutic effects.

Additional information

Challenge test carried out by our supplier

To ensure the preservation of your homemade cosmetics, we have selected an extremely concentrated quality, far more concentrated than dietary grapefruit extracts.

Its bactericidal effectiveness was validated through a challenge test. Challenge test: exposure of a cosmetic formula to bacterial contamination in order to test and validate the preservative system.

Tested formula:

• Aqueous phase: tap water (30 g); non-preserved organic witch hazel hydrosol (30 g)

• Oil phase: organic hazelnut vegetable oil (35 g), emulsifying wax No. 1 (5 g)

• Preservative: Aroma-Zone Grapefruit Seed Extract (0.5 g, i.e. 0.5%)

Preparation

Precautions

Precautions and allergens

Precautions for use

Allergens

Allergen-free

Add the Grapefruit Seed Extract to the finished formula when cold and mix well to homogenise.

Influence on the pH of aqueous preparations: This new quality tends to acidify preparations. It is essential to check the pH of your preparations at the end of the formulation and, if necessary, increase it by adding a little baking soda.

Aroma-Zone tips

• Grapefruit Seed Extract is a 100% natural preservative used for relatively short-term preservation. We recommend keeping your preparations for a maximum of one month with this extract.

• We recommend avoiding its use in microbiologically sensitive preparations , such as those containing fruit powders, plants, milk, etc., or cold emulsions.

• This preservative has good antibacterial efficacy but is less effective on yeast and mould. To boost its antifungal effect, we recommend combining it with 0.5% Benzoate & Sorbate Complex or 0.3% Palmarosa essential oil.

Zero waste promotion: minimum use-by date June 2026

Quality

Natural origin, does not contain benzethonium chloride, parabens, or triclosan.

The formula of our Grapefruit Seed Extract has changed; it is now even more concentrated and water-based rather than glycerin-based, which makes the extract more fluid and therefore easier to dispense. All sizes are now available in the new quality.

Method of production

Produced from citrus seeds through fermentation processes with the addition of organic acids (lactic, citric and ascorbic acids).

Function

A broad-spectrum antibacterial and antifungal preservative, it ensures the preservation of cosmetic preparations containing an aqueous phase (water, hydrosol).

Composition

75% Citric extractives, 25% Water

Presentation

A pale yellow to brown liquid with a light odour, packaged in a glass bottle with a dropper.

Preservation

Store at room temperature away from moisture and light. Close the bottle tightly after use.

Precautions

• Keep out of reach of children.

• Do not swallow, avoid contact with eyes, do not apply undiluted to skin.

• Follow the recommended dosages.

• Always perform an allergy test on the inside of your arm (test the finished product or the preservative diluted to 1%), waiting at least 24 hours (ideally 48 hours) to observe any possible reaction.

• Always check the pH of the products at the end of the formulation and, if necessary, adjust it with baking soda.

• Dangerous. Follow the precautions for use.

• Causes severe eye irritation. Causes skin irritation. (risks associated with the product in its pure form).

EO = Essential Oil VO = Vegetable Oil or Oily Macerate

Supplier documentation