Fermented Radish: This little-known natural preservative could replace parabens
More and more skincare products are relying on ingredients derived from fermentation. Among them, one discreet but highly effective active ingredient is attracting attention: Leuconostoc/Radish Root Ferment Filtrate (fermented radish). But why is it used in so many natural cosmetic products?
An ingredient derived from plant biotechnology
Visit Leuconostoc is an ingredient obtained through a controlled fermentation process. It is a filtrate resulting from the action of lactic acid bacteria on radish roots (Raphanus sativus). These microorganisms transform plant matter by producing peptides capable of slowing microbial proliferation.
The aim of this process is to create a natural antimicrobial agent that is compatible with current cosmetic formulations. This ingredient is water-soluble and does not alter the texture or scent of skincare products.
What is Leuconostoc used for?
This ferment has several functional benefits in cosmetic products:
1. Mild preservative
Its main role is to protect healthcare products from microbial contamination: bacteria, yeast, and mold. Unlike synthetic preservatives, which are often criticized, it is non-irritating and well tolerated.
2. Antifungal and antibacterial action
The ferment contains natural antimicrobial substances that prevent the growth of microorganisms without altering the skin's flora. It is therefore suitable for skin prone to redness, microbial imbalances, or acne.
3. Soothing effect on oily areas
Thanks to its anti-seborrheic properties, it helps regulate excess sebum and relieve localized inflammation, particularly on the face and scalp.
In which products can it be found?
Used in low concentrations (between 0.4% and 4%), this ferment is present in many products, particularly in organic, clean beauty, and hypoallergenic ranges.
It can be found in:
- Moisturizing creams
- Toner lotions
- Gentle cleansing gels
- Conditioners
- Serums for sensitive or mature skin
- Hair treatment products
Its stability and compatibility with other active ingredients make it a versatile ingredient, particularly suited to paraben-free, alcohol-free, or fragrance-free formulas.
Why is it being used more and more?
The regulatory environment and consumer expectations have encouraged the emergence of alternative preservatives. The Leuconostoc/Radish Root Ferment Filtrate check multiple boxes:
- Proven antimicrobial efficacy
- Natural and traceable origin
- Low environmental impact
- Accepted in organic and vegan charters
In addition, its use is part of a broader trend toward the use of fermented ingredients, which promote better skin tolerance while stimulating the skin's natural defenses.
Although not highlighted on labels, this radish root ferment plays a fundamental role in the quality and safety of skincare products. It embodies the transition towards more responsible, functional, and safe cosmetics for all skin types.
