I have chosen the three that the research shows that the skin benefits the most when we want to regenerate new skin. I have divided them into the following:

Tripeptide, which the skin uses to form new collagen.
Tetrapeptide, which the skin uses to form elasticity.
Hexapeptide, which the skin uses for regeneration and anti aging.
If you love peptides like I do, remember that all research shows that they can only penetrate the skin with a formulation that contains lots of moisture/hyaluron.