RESURRECTIONbeauty Leucidal Liquid SF 1 oz — natural ECOCERT-compatible antimicrobial moisturizer for DIY vitamin C serums

Leucidal® Liquid SF is a fermented, ECOCERT-compatible, water‑soluble cosmetic active that delivers mild antimicrobial support and moisturizing protection for DIY vitamin C, hyaluronic acid, and other aqueous serums.

Formulated by fermenting Lactobacillus, Leucidal® Liquid SF is designed for formulators seeking a naturally derived helper to increase product stability and skin hydration in water-based cosmetics. It’s popular with home formulators and small-batch makers because it works well at low usage levels, tolerates acidic vitamin C serums, and is approved for use in many organic-certified lines. While it offers mild protection, it’s often combined with additional actives to achieve broad‑spectrum preservation where needed.

How does Leucidal® Liquid SF support DIY vitamin C and ascorbic acid serums?

Leucidal® Liquid SF is especially useful in low‑pH serums like ascorbic acid formulations because it remains effective across pH 3–8. It provides moisture and some antimicrobial activity without destabilizing sensitive actives. For many DIY vitamin C serums it reduces the immediate need for harsher synthetic preservatives.

• Compatible with ascorbic acid and L-ascorbic derivatives at low pH.
• Water‑soluble and blends easily into aqueous phases.
• Helps maintain hydration and texture in liquid serums.
• Use with additional broad-spectrum options for long-term preservation.

Can I use Leucidal® Liquid SF in hyaluronic acid powders and powder-to-serum mixes?

Yes — Leucidal® Liquid SF mixes into water when you reconstitute hyaluronic acid powders and supports the resulting gel with mild protection and conditioning benefits. It tolerates heat up to about 70°C, so it fits common hydration and mixing steps during DIY preparation.

• Stable during typical HA hydration and mixing temperatures.
• Improves the sensory feel of finished gels and serums.
• Works well in water-based powder reconstitutions and bottled serums.
• Combine with chelators or additional preservatives for extended shelf life.

What formulation tips and limitations should I know before using it?

Leucidal® Liquid SF is a natural, mild protection ingredient, not a full broad‑spectrum preservative by itself in every system. Its effectiveness depends on formulation factors like pH, water activity, and other ingredients. For longer shelf life or multi-phase products, pair it with complementary antimicrobials or preservation strategies.

• Effective in pH range 3–8; ideal for acidic serums and lotions.
• Recommended to use alongside other preservatives for high‑risk formulas.
• Salicylate‑ and GMO‑free and suitable for ECOCERT organic claims in many uses.
• Test challenge and stability in your final formula before scaling up.

How much Leucidal® Liquid SF should I add to my homemade lotions and serums?

Typical usage rates vary by product type and desired level of protection; many DIY formulators start at low single-digit percentages and adjust based on stability testing. Because it’s concentrated, begin conservatively and perform microbial challenge or preservative efficacy tests if you plan to sell or distribute products.

• Start with manufacturer-recommended percentages (commonly 1–5%).
• Increase only as needed, monitoring product feel and performance.
• Use alongside chelators, pH buffers, or additional preservatives when required.
• Always validate in your final water-based formula with testing.

Who is this for: Leucidal® Liquid SF from RESURRECTIONbeauty is best suited for DIY skincare hobbyists, indie brands, and formulators creating small-batch vitamin C serums, hyaluronic acid gels, and lightweight facial lotions who want an ECOCERT-compatible, naturally fermented cosmetic active. If you need a gentle, water‑soluble moisturizing protector that tolerates acidic conditions, this ingredient is a practical option — but those seeking robust, single‑ingredient preservation for very high‑risk or long‑shelf products should plan to combine it with complementary preservation methods and proper testing.

Ingredients

Lactobacillus Ferment