I have been offered exosomes – what can you tell me about them?

They’re fascinating – exosomes act like messengers between skin cells –and offer great potential for real rejuvenation in the skin – however, the type of exosomes that are originally derived from a human source are not approved for injection in the UK, though that doesn’t stop a number of doctors offering the treatment for topical (on top of the skin) application, then needling them in… The ones that are openly on offer in the UK are plant-derived exosomes which appear to have benefits for the skin, but (from the before and after pictures that I’ve seen so far) not such extensive benefits as the human-derived ones.