Exosomes in Skincare: How to Spot False INCI Claims

Published: November 2025 · Last updated: June 2026 · Reading time: approx. 8 minutes · Written by Sarah, Founder of NAYA Skincare

TL;DR - Quick Summary

Real exosome ingredients always include the word "Exosome(s)" or "Extracellular Vesicles" on the INCI list. If you do not see it, the product does not contain exosomes.
Liposomes, ferments, and plant callus cultures are often marketed as exosomes - they are not. These are entirely different technologies.
In the EU, only plant-derived exosomes are permitted in cosmetics. Human-derived exosomes are prohibited.
Three real anonymised INCI lists from the market are analysed below. None contains exosomes despite the marketing claims.
Transparent INCI labelling is the only reliable way to verify whether a product contains genuine exosome technology.

You have seen the claims. Exosomes are everywhere in skincare marketing right now. But when you read the actual INCI list on most of these products, something is missing: the exosomes themselves. This article is for the reader who wants to know whether a product genuinely contains exosome technology - and how to verify it in under 60 seconds.

We analysed three real, anonymised INCI lists from products currently marketed as containing exosomes. None does. Below we show exactly why, what the common substitutes are, and what a real exosome ingredient actually looks like on a label. By the end you will be able to evaluate any exosome claim yourself - without needing to trust the marketing.

What are exosomes in skincare - really?

In skincare science, exosomes are biologically derived extracellular vesicles - produced by living cells, physiologically active, and able to carry peptides, lipids, amino acids, and signalling molecules. They feature specific surface markers that distinguish them from other delivery systems.

What they are not:

Not emulsifiers or delivery systems Liposomes are man-made phospholipid vesicles. Exosomes are biologically derived. These are different technologies with different mechanisms.
Not ferments Ferments are postbiotic byproducts created by microorganisms. A ferment does not contain or produce extracellular vesicles.
Not botanical extracts Standard plant extracts contain a broad mix of compounds. Plant exosomes are specifically isolated vesicles requiring specialised extraction.
Not callus cultures or conditioned media Plant stem cell extracts and lysates are metabolic fluids or lysed cell material. They do not contain vesicles unless explicitly extracted, purified, and declared as such.

Exosomes cannot simply "appear" because an ingredient is encapsulated, fermented, or derived from a plant. If the INCI does not name them, they are not there.

How to spot real exosomes on an INCI list

Genuine exosome ingredients have clear, regulated INCI names. They will always include the word "Exosome(s)" or "Extracellular Vesicles". Common examples:

Real exosome INCI names - examples Triticum Vulgare (Wheat) Exosomes
Lactobacillus Exosomes
Glycine Max (Soybean) Exosome Extract
Plant-Derived Extracellular Vesicles
Centella Asiatica Extracellular Vesicles
Bifida Ferment Lysate Exosomes

Supplier naming conventions may vary slightly, but the classification is always present. If you do not see it, the product does not contain exosomes. There is no loophole. There is no hidden name.

Case study 1: The "Azelaic Exosome" claim

Some products market themselves around "azelaic exosomes", "azelaic acid delivered via exosomes", or an "exosomal azelaic system." When you inspect the actual INCI, no exosome identifiers are present.

Anonymised INCI - Product A Aqua (Water/Eau), Ascorbyl Glucoside, Dibutyl Adipate, Pentylene Glycol, Tromethamine, Propanediol, Glycerin, Betaine, Sucrose, Tocopheryl Acetate, Behenyl Alcohol, Hydrolyzed Rhodophyceae Extract, Azelaic Acid, Xanthophylls, Bacillus Ferment, Phosphatidylcholine, Beta-Sitosterol, Burdock Root Extract, Chamomile Extract, Sage Leaf Extract, Tropaeolum Majus Extract, Phytosphingosine, Mannitol, Tocopherol, Lecithin, Sorbitan Oleate, Xanthan Gum, Sodium Phytate, Potassium Cetyl Phosphate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Cetrimonium Chloride, Lactic Acid, Potassium Lactate, Citric Acid, Ethylhexylglycerin, Hydroxyacetophenone, Potassium Sorbate.

Does this contain exosomes? No

Phosphatidylcholine + Lecithin

These form liposomes, nanoemulsions, and lamellar delivery systems. Liposomes are not exosomes. Liposomes are synthetically manufactured phospholipid structures - useful for penetration, but not biologically active cellular messengers.

Bacillus Ferment

A ferment is a postbiotic byproduct. It is not an exosome and does not contain extracellular vesicles.

Azelaic Acid

Azelaic acid is a molecule, not a vesicle. It cannot form or be an exosome.

This is a well-formulated liposomal azelaic acid product - useful in its own right, but not exosomal technology. The marketing claim is not supported by the ingredient deck.

Case study 2: Callus cultures marketed as plant exosomes

A growing trend is the use of plant callus cultures or conditioned media marketed as exosomes. These ingredients can be beneficial - but they are not exosomes and should not be presented as such.

Anonymised INCI - Product B Citrus Limon Fruit Water, Propanediol, Tridecane, Undecane, Aqua, Cetyl Alcohol, Glycerin, Caprylyl Caprylate/Caprate, Alcohol, Stearyl Heptanoate, Sweet Almond Oil, Shea Butter, Sodium Stearoyl Glutamate, Lactobacillus Ferment, Microcrystalline Cellulose, Stearyl Caprylate, Gluconolactone, Perlite, Squalane, Maltodextrin, Sodium Levulinate, Fragrance, Turmeric Callus Conditioned Media, Centella Asiatica Callus Conditioned Media, Lactobacillus, Carrot Root Cell Culture Lysate, Cotton Callus Culture, Pomegranate Seed Cell Culture Lysate, Sodium Anisate, Xanthan Gum, Sodium Citrate, Cellulose Gum, Coconut Fruit Extract, Tocopherol, Beta-Sitosterol, Soybean Oil, Citric Acid, Squalene, Phytic Acid, Pentylene Glycol, Caramel.

Does this contain exosomes? No

Callus Conditioned Media Metabolic fluids collected from plant cell cultures - not extracted, purified vesicles.
Cell Culture Lysate Lysed cell material - broken-down cell contents, not intact extracellular vesicles.
Callus Culture Raw plant stem cell material - not the same as isolated exosomes by any standard.

"Cell-to-cell communication" is not the same as exosomes. "Callus culture" is not the same as exosomes. "Plant stem cells" are not the same as exosomes.

Case study 3: "Longevity" claims without exosomes

A third pattern is increasingly common: a product positioned around "skin longevity" that lists exosomes among its headline actives, alongside other on-trend terms. The marketing presents exosomes as a key part of the formula. The INCI list tells a different story.

Anonymised INCI - Product C Aqua, Rosa Damascena Flower Water, Caprylic/Capric Triglyceride, Glycerin, Simmondsia Chinensis Seed Oil, Lactococcus Ferment Lysate, Maltodextrin, Glyceryl Citrate/Lactate/Linoleate/Oleate, Microcrystalline Cellulose, Aloe Barbadensis Leaf Juice Powder, Pyrus Malus Fruit Extract, Helianthus Annuus Sprout Extract, Lactobacillus Ferment, Alteromonas Ferment Extract, Retinal, Tocopherol, Phospholipids, Phosphatidylcholine, Magnesium PCA, Mannitol, Cetyl Alcohol, Polyglyceryl-10 Laurate, Pentylene Glycol, Xanthan Gum, Citric Acid, Sodium Chloride, Sodium Hydroxide, 1,2-Hexanediol, Phenethyl Alcohol, Phenylpropanol, Sodium Benzoate, Sodium Levulinate, Levulinic Acid, Potassium Sorbate, Lactic Acid, Parfum.

Does this contain exosomes? No

Reading the list against the single rule from the start of this article: there is no ingredient here whose INCI name contains "Exosome(s)" or "Extracellular Vesicles." On the label, no exosome ingredient is declared. If a product claims exosomes, the INCI should show an exosome or extracellular vesicle ingredient. If it does not, the claim is difficult to verify from the formula.

What is actually present follows the same pattern as the first two case studies:

Lactococcus Ferment Lysate, Lactobacillus Ferment, Alteromonas Ferment Extract Ferments and postbiotic materials. Genuinely useful for barrier and microbiome support - but ferments are not exosomes, and a lysate is broken-down cell material rather than intact, isolated vesicles.
Phospholipids + Phosphatidylcholine The building blocks of liposomal delivery systems. As in Case Study 1, liposomes are a synthetic delivery technology, not biologically derived exosomes.
Retinal A genuine, well-evidenced retinoid - and it is correctly present on the list. Worth noting, because it shows the product does contain real actives. The issue is not that nothing in the formula works. It is that the exosome claim specifically is not reflected in the INCI.

This is the most important distinction to hold onto: a formula can contain perfectly good, active ingredients and still make a headline claim the label does not support. The presence of retinal and useful ferments does not make the exosome claim accurate. The two are separate questions, and only the INCI answers the second one.

A long list of impressive-sounding actives in the marketing is not the same as those actives appearing on the INCI. When a claimed hero ingredient has no corresponding INCI name, the claim is one the formula cannot back up.

This pattern - a trend term presented as a hero ingredient with nothing on the label to verify it - is not unique to exosomes. It is how a great deal of skincare marketing now works, and it is worth understanding in its own right. We explore that mechanism, and how ingredient claims travel from supplier deck to product page, in our piece on NAD+ in skincare.

Exosomes vs. liposomes vs. ferments vs. callus cultures

Use this framework whenever you want to assess an exosome claim:

Ingredient Type	What It Is	INCI Identifier	Is It an Exosome?
Plant Exosomes	Biologically derived extracellular vesicles from plant sources. Carry active signals between cells.	Includes "Exosome(s)" or "Extracellular Vesicles"	Yes
Liposomes	Synthetically manufactured phospholipid vesicles. Improve delivery and penetration.	Phosphatidylcholine, Lecithin	No
Ferments / Postbiotics	Byproducts of microbial fermentation. Provide enzymes or metabolites.	[Species] Ferment, [Species] Ferment Filtrate	No
Callus Cultures	Plant stem cell extracts or metabolic fluids. Beneficial but not vesicle-based.	[Species] Callus Culture, Conditioned Media, Lysate	No

What plant exosomes are permitted in EU skincare?

Within the EU, only plant-derived exosomes are permitted in cosmetic products. Human-derived exosomes are prohibited. Exosomes may only be applied topically - injections are not allowed.

Common EU-compliant plant exosome sources in cosmetics include Centella Asiatica, wheat, soybean, and rice. At NAYA, our ExoBarrier™ Complex uses only plant-derived, non-viable exosome technology formulated within EU regulations - and we only claim exosomes where the INCI list confirms their presence.

Why this matters for your skin - and your money

Exosome skincare is genuinely exciting science. But that scientific credibility is only meaningful when brands use actual exosome ingredients - not lookalike technologies with the same marketing language.

A transparent INCI list empowers you to know what technology is truly inside a formula, separate evidence-based science from marketing, and invest in skincare that genuinely delivers what it promises. Science should be clear. Innovation should be honest. Language should be used with integrity.

Frequently asked questions: exosomes and INCI lists

How do exosomes appear on an INCI list?

Real exosome ingredients always include the word "Exosome(s)" or "Extracellular Vesicles" in their INCI name - for example, Wheat Exosomes, Lactobacillus Exosomes, or Plant-Derived Extracellular Vesicles. If the INCI list does not include this word, the product does not contain exosomes.

What is the difference between exosomes and liposomes in skincare?

Liposomes are man-made phospholipid vesicles - useful for delivery but not biologically active. Exosomes are biologically derived extracellular vesicles produced by living cells, carrying proteins, lipids, and RNA as active cellular messengers. They are entirely different technologies.

Are plant callus cultures the same as exosomes?

No. Callus cultures, lysates, and conditioned media are plant stem cell extracts - not exosomes. They do not contain extracellular vesicles unless explicitly extracted, purified, and declared as exosomes on the INCI list.

Can a ferment be an exosome?

No. A ferment is a postbiotic byproduct created by microorganisms. It is not a biological vesicle and does not qualify as an exosome ingredient. A ferment lysate is broken-down cell material, which is also not an intact, isolated exosome.

Which plant exosomes are allowed in EU cosmetics?

Within the EU, only plant-derived exosomes are permitted in cosmetic products. Human-derived exosomes are prohibited. Common plant sources include Centella Asiatica, wheat, and soybean. Exosomes may only be applied topically - injections are not permitted.

How do I verify whether a product claiming exosomes actually contains them?

Check the INCI list. If the word "Exosome(s)" or "Extracellular Vesicles" does not appear, the product does not contain exosomes - regardless of what the marketing says. There is no hidden or alternative name for a real exosome ingredient.

NAYA

Exosomes in Skincare: How to Read an INCI List and Spot False Claims | NAYA

What are exosomes in skincare - really?

How to spot real exosomes on an INCI list