Key benefits
- Made with human stem cell and fibroblast conditioned media, a source of growth factors and skin proteins
- Supports a glowing, refreshed-looking complexion
- Uses exosome technology to help skin look smoother and more even
How to use
Apply 2 pumps or desired amount on clean skin morning and evening. Follow with additional serum(s) and moisturiser if needed (directions from the box).
Osmosis suggests smoothing any leftover serum onto the backs of your hands.
Who it's for
The box lists ageing, sensitive, irritated, pigmented and dry skin. StemFactor suits people who want a light serum with a short ingredient list to add to an existing routine, including those who find stronger actives hard to tolerate.
The key ingredients are derived from human cell cultures grown in a lab, so StemFactor is not vegan. Some people prefer to know this before they buy.
Ingredients
Key ingredients:
- Human stem cell conditioned media and human fibroblast conditioned media – the laboratory-grown cell culture liquids described above
- Witch hazel extract
- Phosphatidylcholine – forms liposomes, the delivery system Osmosis uses across its serums
- Lemon peel oil
Full ingredient list, as printed on the box (INCI): Water, Human Stem Cell Conditioned Media, Human Fibroblast Conditioned Media, Hamamelis Virginiana (Witch Hazel) Bark/Leaf/Twig Extract, Hydroxyethylcellulose, Phosphatidylcholine, Citrus Medica Limonum (Lemon) Peel Oil, Dehydroacetic Acid, Benzyl Alcohol.





