Lactobacillus Ferment Lysate

Best

Prebiotic/Probiotic/Postbiotic

Lactobacillus Ferment Lysate at a glance

  • Fermented byproduct of the probiotic Lactobacillus
  • Delivers skin-soothing properties
  • Has the potential to positively influence skin’s microbiome
  • May also help address signs of photoaging (though more independent research is needed)
  • Can make other ingredients more bioavailable through fermentation

Lactobacillus Ferment Lysate description

_Lactobacillus_ ferment lysate is extolled for delivering a pronounced soothing effect on skin. Studies also suggest that it plays a role in helping reinforce skin’s microbiome and thereby may reduce the severity of common skin conditions. The Personal Care Products Council classifies it as a skin-conditioning agent. _Lactobacillus_ ferment lysate is a lab-created byproduct of the probiotic Lactobacillus. As it is converted into the lysate form, the outer membrane is broken down and it is no longer a living microorganism. This allows it to function more like a postbiotic, which can be safely and effectively incorporated into cosmetic formulations to replenish skin via microbiome support. _Lactobacillus_ ferment lysate may also be used to ferment other skin care ingredients, such as plant extracts, to enhance their benefits (the fermentation process releases skin-friendly compounds and helps make them more bioavailable). In raw material form, _Lactobacillus_ ferment lysate appears as a cloudy, yellowish-white liquid. It is important to note that further independent studies are needed to draw more definitive conclusions Lactobacillus ferment lysate’s benefits for skin, but at the time of this writing, what exists looks promising. Of note, emerging studies (funded by ingredient suppliers) show potential for _Lactobacillus_ ferment lysate’s ability to prevent and treat visible signs of skin photoaging. _Lactobacillus_ ferment lysate is also marketed by a few suppliers. Because the _Lactobacillus_ genus is non-pathogenic, the INCI names do not include the species of _Lactobacillus_ that is being used for the fermentation product. Some of the species used are _bulgaricus_, _helveticus_, _plantarum_, _casei_, _rhamnosus_ and _acidophillus_. Therefore, the different _Lactobacillus_ ferment lysates may have very different effects on the skin.

Lactobacillus Ferment Lysate references

  • Current Issues in Molecular Biology, January 2024, pages 513-526
  • Microorganisms, July 2023, pages 1-24
  • International Journal of Cosmetic Science, February 2023, pages 83-94
  • Journal of the Korean Society of Cosmetology, April 2021, pages 356-363
  • Molecules, March 2021, pages 1-11
  • Journal of the Society of Cosmetic Scientists of Korea, 2020, pages 23-29
  • International Journal of Cosmetic Science, September 2019, ePublication

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings

Best

Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.

Good

Necessary to improve a formula's texture, stability, or penetration.

Average

Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.

Bad

There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.

Worst

May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.

unknown

We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.

Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.