What Are Exosomes? The Skin Treatment Everyone's Talking About, Explained
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If you have spent any time on skincare social media lately, you have probably heard the word exosome. What are exosomes, and why is Maysama's new Vitamin C Exosome Serum built around this ingredient, alongside gold-stabilized vitamin C and plant-based collagen fragments?
This guide explains what exosomes are, what the current research supports, and how they fit alongside an LED light therapy routine.
What Is an Exosome?
An exosome is a microscopic extracellular vesicle, essentially a tiny messenger that cells release to communicate with each other. These vesicles carry proteins, lipids and genetic material capable of influencing processes like collagen synthesis and tissue repair in nearby cells.
A systematic review of exosomes in skin rejuvenation found evidence supporting improvements in elasticity, wrinkle appearance, hydration and pigmentation, largely attributed to how these vesicles support cell communication and repair signaling.
A broader review of 34 studies on exosomes in cosmetic dermatology identified similar potential for wound healing, scar prevention and skin regeneration, while noting the field is still maturing, with challenges around standardization and long-term clinical data.
What Do Exosomes Do for Skin? Meet the Vitamin C Exosome Serum

Rather than sourcing exosomes from animal or stem cell material, Maysama's serum uses phyto-exosomes, cultivated from green microalgae in a lab setting. This is a vegan, biomimetic technology designed to mirror the way skin cells naturally communicate and renew, rather than a naturally occurring extract.
Golden C: Gold-Stabilized Vitamin C
Pure vitamin C is notoriously unstable. It oxidizes quickly and penetrates skin poorly on its own. Maysama pairs L-ascorbic acid with glutathione and a gold submicroparticle carrier, designed to keep it stable and help it absorb more effectively.
Based on supplier in-vitro testing of the raw ingredient, rather than the finished product, this delivery system is designed to support skin penetration and stability, though results on the finished serum itself have not been independently tested.
Phyto-Exosomes
These lab-cultivated, plant-derived vesicles are designed to support the skin's natural renewal processes and help carry other active ingredients deeper into the skin, rather than sitting on the surface.
Plant-Based Collagen Fragments
The formula also includes a human-identical type I collagen fragment, grown in plants rather than harvested from animals. This is included to support the skin's own collagen network alongside the vitamin C and exosome actives.
How the Vitamin C Exosome Serum Fits Alongside LED Light Therapy
If you already use an LED mask, or you are considering one, exosomes for skin and LED light therapy support skin renewal in different ways. LED light therapy works through photobiomodulation, using red and near-infrared wavelengths to stimulate your own cells and support natural collagen production. A topical antioxidant serum works alongside that process rather than replacing it.
Many skincare experts recommend layering a vitamin C serum before or after an LED session, since vitamin C plays a supporting role in collagen synthesis and helps protect the skin from oxidative stress during active repair.

Maysama's own suggested routine follows this order: cleanse, treat with the Vitamin C Exosome Serum, then use an LED device such as the Aura LED Light Therapy Face Mask to enhance results, before finishing with moisturizer and sunscreen.
Setting Realistic Expectations
As with any relatively new ingredient category, it is worth approaching all exosome claims with a healthy dose of skepticism and curiosity in equal measure. Much of the current research is still in vitro or early-stage, meaning it is conducted on cells in a lab setting rather than through large-scale clinical trials on human skin.
That does not make the science meaningless. It simply means the field is evolving quickly, and formulations that are transparent about their sourcing and backed by published, peer-reviewed characterization tend to be a more trustworthy starting point than vague marketing claims alone.
The Bottom Line
So, what are exosomes? In simple terms, they are tiny cellular messengers that may help support skin repair and regeneration, and the research so far is genuinely promising.
Maysama's Vitamin C Exosome Serum brings this ingredient into a daily, at-home routine, alongside gold-stabilized vitamin C and plant-based collagen fragments, designed to work alongside your existing skincare and LED light therapy routine rather than replace either.
If you want to build a complete routine, explore Maysama's full range of LED skincare designed to work alongside your red light therapy.