Ingredients and actives

Exosomes

Also written as exosome serum.

Vesicles used in the premium end of regenerative skincare. Often sold as a two-part system, or as a small ampoule with a short use-by once opened.

What it needs from a bottle

A short in-use life argues for single-dose or small-format packaging. Sell four 5ml ampoules rather than one 20ml bottle and the last dose is as good as the first, which is the claim the category rests on.

Formats that suit it

• 5ml ampoules
• Airless pumps