What is Acetyl Hexapeptide-1
The Munapsys™ is a biomimetic peptide made up of six amino acids, listed in the INCI as Acetyl Hexapeptide-1. It belongs to the family of neuromodulating peptides: active ingredients that work on communication between nerve endings and skin cells, in the field of neurocosmetics.
How it works on expression lines
It has a dual mechanism, which is what makes it interesting. On the one hand, it reduces the intensity of facial muscle contractions, limiting the movements that etch expression lines. On the other hand, it supports fibroblasts in producing type I collagen, the protein that gives the dermis its structure. This means it acts on the two causes of wrinkles - the movement that creates them and the sagging that makes them permanent - rather than just one.
Which wrinkles it targets and how to use it
It is suitable for dynamic wrinkles — glabellar, forehead, and nasolabial lines — and loss of definition in the facial contour. Use it morning and evening before applying moisturizer. The first changes can be seen after about two weeks of consistent use, a short time for an active ingredient in this category.
A gradual and reversible effect
L's effect on muscle contractions is gradual and reversible: it lasts as long as the product is used consistently and does not alter facial expressiveness. One important clarification: functional cosmetics are not a substitute for aesthetic medicine, which uses different tools and timelines and must be performed by a medical professional.
Read more on our blog about how Munapsys works and which peptides it pairs well with.
Frequently asked questions
How does Acetyl Hexapeptide-1 work on wrinkles?
It targets both causes of wrinkles: it reduces the movement of the facial muscles that create them and supports type I collagen production, counteracting the sagging that sets them in place.
Does L'Acetyl Hexapeptide-1 block facial expressions?
No, the effect on muscle contraction is gradual and reversible and does not affect facial expression. It lasts as long as the product is used consistently.
How long does it take to see results?
Applied morning and evening before moisturizer, it produces the first changes in about fifteen days, a short time for a peptide in this category.
Does L'Acetyl Hexapeptide-1 replace aesthetic medicine?
No, functional skincare does not replace aesthetic medicine, which uses different tools and timelines and is a medical procedure.
The selection of ingredients is curated by Elisa Avalle, founder of LeLang and a dermocosmetics specialist. Each formula is created and developed in LeLang laboratories.
