Follow us on our new Insta page »

Lactobacillus Ferment

What-it-does: soothing, preservative

Official CosIng Information


Lactobacillus ferment is an interesting probiotic ingredient with some promising properties. 

First, according to a 2009 Estee Lauder patent, it’s a DNA repair enzyme and it can help to protect the skin against environmental aggressors.

Second, still according to Estee Lauder research but now from 2012 the ingredient has anti-microbial and anti-inflammatory properties and holds promise in the treatment of acne and rosacea. For the former one 5% was needed to show effectiveness, but for reducing skin sensitivity already 1% showed results. 

The anti-acne effect is confirmed also by US manufacturer, Barnet, that says that Lactobacillus ferment is helpful in killing harmful bacteria and creating a healthy balanced microflora. Compared to well-known anti-acne and anti-inflammatory salicylic acid the probiotic worked faster at reducing the size and redness of acne lesions. 

It also goes by the trade name Leucidal Liquid SF and can serve in the formula as a natural preservative. 

Bottom line: It’s not the most proven ingredient (yet) but definitely a very promising one especially if you have sensitive skin, acne or rosacea.  

Show me some proof

  • Journal of cosmetic science, Nov-Dec 2012, Physiological effect of a probiotic on skin

Products with Lactobacillus Ferment

Missha Time Revolution Immortal Youth Moisturiser SU:M37 Secret Programming Essence CN Formulator Curcumin Essence Corpa Flora Antidote H+ Epicuren Discovery Acidophilus Probiotic Facial Cream Garden of Wisdom Hyaluronic Acid Serum Garden of Wisdom Neurophroline Serum Pai Back To Life Hydration Serum Sidmool Ultra Facial Moisturizing Chamile Decon-Gel AHC Ageless Real Eye Cream For Face Allies of Skin Molecular Multi-Nutrient Day Cream Benefit Hangover Good In Bed Hydrating Serum Garden of Wisdom Anti-Aging Multipeptide Serum KORA ORGANICS Turmeric 2-In-1 Brightening & Exfoliating Mask Nu Skin Nutricentials pH Balance Mattefying Toner Orgaid Greek Yogurt & Nourishing Organic Sheet Mask Orgaid Vitamin C & Revitalizing Organic Sheet Mask Pai Lotus & Orange Blossom Bioaffinity Toner SKOON. Skincare Superfluity Moisture Gel Your Best Face (YBF-Skincare) Rescue Face Serum Allies of Skin Bright Future Overnight Facial Garden of Wisdom Azelaic Acid 10% Serum Green Keratin Resurrection Re-Blossom Face Serum KORA ORGANICS Noni Bright Vitamin C Serum KORA ORGANICS Noni Night AHA Resurfacing Serum Lovely Day Botanicals Hyaluron + Bloom Tropical Hydration Nectar Pai Chamomile & Rosehip Calming Day Cream Tata Harper Resurfacing Mask Tropic Fruit Peel Resurfacing Serum 3LAB Anti-Aging Eye Lift ASIS-TOBE Hyaluronic Essential Toner Allies of Skin Molecular Saviour Probiotics Repair Mist BOSCIA Sake Hydrating And Brightening Serum Bite Beauty Changemaker Skin-Optimizing Primer (Hydrating) Cosmedix Reboot Overnight Hydration Complex First Aid Beauty Eye Duty Triple Remedy Am Gel Cream Garden of Wisdom Mandelic Acid 10% Serum Goodal Water Full Moisture Lovely Day Botanicals Mellow Mallow Calming Everyday Moisturizer NYDG Luminizing Essence Purito Galacto Niacin 97 Power Essence Ren Evercalmâ„¢ Ultra Comforting Rescue Mask Ringana Fresh Tonic Calm TRUE BOTANICALS Calm Nutrient Mist Urtekram Purple Lavender Soap Bar Allies of Skin Molecular Saviour Mist Bakel Cool Wash Purifying Cleansing Gel Crave Skincare Virgin Skin Tightening And Brightening Serem GLAMGLOW BERRYGLOW Probiotic Recovery Mask Garden of Wisdom Azelaic Acid Serum 8%