Humectant

Human Urine Derived Stem Cell Conditioned Media

INCI: HUMAN URINE DERIVED STEM CELL CONDITIONED MEDIA

Reviewed by Kate · Last updated 2 Jun 2026

A cell-derived ingredient that supports skin hydration and barrier function

Best For Skin Types

All

Addresses

Dryness, Sensitivity, Barrier repair

Usage Frequency

Daily

What Is Human Urine Derived Stem Cell Conditioned Media?

Human urine-derived stem cell conditioned media (HUSC-CM) is a bioactive extract created by culturing stem cells harvested from human urine, then collecting the nutrient-rich fluid (conditioned media) they release. This media contains signalling molecules, proteins, and exosomes—tiny vesicles that facilitate cell communication—that the stem cells naturally produce.

In skincare formulations, this ingredient functions primarily as a humectant and skin conditioner, helping to draw moisture into the skin and support its natural protective barrier. It is derived from a renewable, non-invasive source and does not involve stem cells remaining in the final product.

How It Works

The conditioned media contains exosomes and proteins released by stem cells during culture. These molecules can interact with skin cells to promote hydration and support normal skin function. Exosomes, in particular, are known to facilitate communication between cells and may help coordinate repair and maintenance processes within the skin.

The ingredient works largely through topical application—these molecules can penetrate the outer layers of skin to interact with living cells beneath, though the exact depth and efficiency of this penetration in cosmetic formulations remains an area of ongoing research.

Clinical Evidence & References

In vitro and pre-clinical research suggests that human urine-derived stem cell exosomes support tissue repair and cell activity, particularly in wound healing contexts. However, most published studies have focused on therapeutic applications (such as diabetic wound healing) rather than cosmetic skincare benefits.

Evidence specifically for anti-ageing, hydration, or barrier repair in healthy skin via topical cosmetic application is currently limited. Further clinical studies in human volunteers using realistic cosmetic concentrations would help clarify the ingredient's efficacy for common skincare concerns.

How to Use

This ingredient is typically found in serums, essences, and moisturisers. It works well in layered routines and can be applied daily as part of your regular skincare. Allow it to absorb fully before applying other products. There is no established optimal concentration for cosmetic use, so follow the product instructions provided by the manufacturer.

Safety & Precautions

Generally well-tolerated with a low sensitising potential, though individual responses may vary. Patch test if you have highly sensitive skin or a history of reactions to biological ingredients.

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