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Ingredient glossary

Exosomes

What Exosomes does for your skin, who it suits, and what to watch for.

INCI: Lactobacillus Exosomes · Also: Extracellular Vesicles, EVs, Stem Cell Exosomes, Platelet Exosomes, Plant Exosomes, Lactobacillus Extracellular Vesicles

Decent support

In short: Exosomes delivers repair and hydration, suits most skin types, and the evidence behind it is limited. One thing to know: clear it with your doctor if pregnant.

What it does
Repair, hydration
Best for
Most skin types
Watch out
Clear it with your doctor if pregnant
Evidence
Limited
How long
2–4 weeks
Does it clash with what you use? Check it →

Written by Maya FaourHow we score →

The Glow take

Genuinely worth a spot in your routine.

When your goal is softening fine lines and keeping skin firm, Exosomes pulls genuine weight, though the evidence is still thin, so keep expectations gentle. Gentle enough that most skin types can reach for it.

— Maya

What it does

  • repair
  • hydration
  • anti aging
  • brightening

limited evidenceSmall trials of adipose stem cell platelet lactobacillus and bovine milk exosomes report improvements in hydration elasticity wrinkles and pigmentation over 2 to 12 weeks and are often confounded by microneedling or laser delivery. The only placebo controlled standalone trial is a supplier affiliated 16 woman 4 week study of Lactobacillus vesicles and penetration of intact vesicles through unbroken stratum corneum is unresolved. Lactobacillus ferment lysate and similar ferments are postbiotics rather than intact exosomes.

Who it's for, and who should skip it

Tends to suit

  • normal
  • dry
  • combo
  • mature
  • photoaged

Approach with care

  • very sensitive
  • autoimmune skin conditions
  • pregnancy
  • breastfeeding
  • Clogs poresLow
  • Irritation riskLow

How it fits each skin type

  • DrySuits
  • CombinationSuits
  • OilySuits
  • SensitiveTake care

Often chosen for mature, photoaged. Take extra care if any of these apply to you: autoimmune skin conditions, pregnancy, breastfeeding.

Where it fits in your routine

WhenMorning or evening
Where in the orderAfter cleansing, before your moisturizer

Give it two to four weeks, and possibly less: that is simply when it was measured.

What was measured, and in whom

Measured on: Eye wrinkle depth elasticity hydration and skin density measured by Antera 3D imaging and skin bioinstrumentation.

A placebo controlled 4 week study of Lactobacillus plantarum extracellular vesicles in 16 Korean women measured at 0 2 and 4 weeks found wrinkle indentation reduced 8.9 percent at 2 weeks and 15.9 percent at 4 weeks with elasticity up 27 percent and hydration up 21 percent at 4 weeks while the placebo side did not change. The study is supplier affiliated and small and every other exosome timeline comes from studies confounded by microneedling laser or multi ingredient formulas so this value rests on one trial and one exosome type.

Jo 2022 Lactobacillus plantarum extracellular vesicles 4 week placebo controlled trial in Current Issues in Molecular Biology PMID:35723322 open access full text verified

Plays well with

Exosomes, answered

Is Exosomes safe during pregnancy?

Clear it with your doctor first. Exosomes is flagged as use-with-caution during pregnancy and breastfeeding, so check with your doctor or midwife before adding it.

Who should avoid Exosomes?

Approach Exosomes with care if any of these apply to you: very sensitive, autoimmune skin conditions, pregnancy, and breastfeeding.

What concentration of Exosomes actually works?

Its concentration is rarely printed on the label, so use the ingredient list as your clue: near the top third it is likely doing real work, near the bottom it is more of a sprinkle.

During pregnancy

Treat Exosomes as a maybe rather than a yes for now. It is flagged as one to use with caution while pregnant or breastfeeding, so it is worth clearing before you carry on.

When in doubt, check with your doctor or midwife. They outrank any website, including this one.When it is worth booking →

Compare Exosomes with

Can you mix Exosomes with

This, for every label you own

One ingredient is easy. A full label is where it gets confusing. The Ingredient Decoder reads any product and tells you the honest truth, ingredient by ingredient.

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Sources & how we reviewed this

  1. PMID 35723322read in full
  2. PMID 41405927abstract only, the full text is paywalled

Last reviewed August 2026. Educational information about a cosmetic ingredient, not medical advice.