Revolutionizing Women’s Intimate Health with Cutting-Edge L14 Complex
L14 is a proprietary probiotic complex featured in Lactonic. Developed by researchers from Seoul National University, L14 combines a patented strain known as L-Fortin with a triple-strain complex and four types of Medi Probiotics, creating a comprehensive 7-layer probiotic system.
12/10/20242 min read


Discover the Power of Postbiotics: The Science Behind L14 in Lactonic Women’s Cleanser
This formulation is designed to support the natural balance of beneficial bacteria in the intimate area, enhancing the skin's immune defense and maintaining a healthy pH balance. The inclusion of L14 in Lactonic products aims to provide gentle yet effective care, promoting overall feminine health and comfort.In the ever-evolving world of women's health and skincare, postbiotics are emerging as the next-generation solution for maintaining optimal balance and wellness—especially in sensitive areas. One standout ingredient making waves is L14, a patented postbiotic complex featured in the Lactonic Premium Women's Cleanser.
What Are Postbiotics?
You’ve probably heard of probiotics, the “good bacteria” that support gut health. But what happens after probiotics do their job? The answer is postbiotics—the bioactive compounds they leave behind. These components, derived from dead or inactive microorganisms, play a powerful role in supporting your body’s health.
According to the International Scientific Association for Probiotics and Prebiotics (ISAPP), postbiotics are defined as “preparations of inanimate microorganisms and/or their components that confer a health benefit on the host.” In other words, they don’t need to be alive to work—and that’s where L14 shines.
Why L14 Is Different
L14 is a patented postbiotic strain developed by researchers from Seoul National University. It combines powerful bioactive compounds derived from a unique microbial fermentation process into a 7-layer defense system, which includes:
4 types of Medi Probiotics
3-strain complex
A proprietary L-Fortin strain
This complex, collectively known as L14, is specially formulated to support the health of the external genital area, known as the Y-zone. It's not just about cleansing—it's about restoring balance, reducing inflammation, and supporting the skin's natural defenses.
Clinically Documented Benefits of L14
The power of L14 lies in its science-backed effects:
✅ Reduces Inflammation – In vitro experiments have shown that L14 significantly suppresses inflammatory markers triggered by high-fat diets and other stressors.
✅ Boosts Immunity – Postbiotics like L14 help strengthen local immunity in sensitive areas, acting as a protective barrier.
✅ Anti-Cancer & Antibacterial – L14 has shown promising results in inhibiting harmful bacteria and may offer anti-cancer properties as documented in SCI-grade publications.
✅ Restores Balance – Helps maintain optimal pH and microbiome balance, keeping discomfort, odor, and dryness at bay.
Why You’ll Find It in Lactonic
The Lactonic Premium Women's Cleanser uses L14 as its core active ingredient. Designed by leading scientists and cosmetic experts, this cleanser goes beyond surface-level hygiene. It’s a therapeutic solution that nourishes, protects, and respects the delicate ecosystem of your Y-zone.
Bottom Line
In a market saturated with basic hygiene products, L14 sets a new standard. Backed by patents and clinical research, it provides long-term care and comfort through the power of next-generation postbiotics.
Ready to upgrade your feminine care routine with real science?
Try Lactonic and experience the L14 difference.





