Lately I hear a lot about injectable peptides in aesthetic medicine. What exactly are they, how do they work and are they really worth it?

Hello Cristina,

That's an excellent question. Peptides are one of the treatments currently generating the most interest in aesthetic and regenerative medicine, although they still raise many questions.

Peptides are short chains of amino acids — that is, fragments of proteins that act as true “biological messengers”. Their role is to send signals to cells to stimulate certain natural processes in the body, such as collagen production, tissue repair, skin regeneration or the reduction of inflammation.

Unlike other treatments that simply fill or add volume, peptides aim to improve the functioning of the skin itself, helping it recover part of its own regenerative capacity.

In aesthetic medicine we use different types of peptides, since they do not all have the same function. Some are geared towards improving skin quality, others stimulate collagen formation, some help improve hydration and elasticity, and others are part of regenerative medicine treatments with applications that go beyond facial rejuvenation.

Patients usually notice more luminous, firmer skin with better texture and better overall quality. It is important to understand that they do not produce an immediate change, as can happen with a hyaluronic acid filler. Their effect is progressive, because they work by stimulating the skin's natural repair mechanisms.

I usually recommend an initial protocol of 3 to 4 sessions, spaced roughly two to four weeks apart, although the number may vary depending on age, the condition of the skin and each patient's goals. Afterwards, we usually carry out maintenance sessions every few months to preserve the results.

In my clinical practice, I consider peptides a very interesting tool, especially in patients seeking natural rejuvenation without altering the features of the face. I frequently combine them with other treatments, such as polynucleotides, skinboosters, collagen biostimulators or laser technologies, as their effects are usually complementary.

That said, it is also important to be prudent. In recent years many products marketed under the name “peptides” have appeared, but not all of them have the same level of scientific evidence or the same pharmaceutical quality. It is therefore essential to always place yourself in the hands of an experienced doctor who uses authorised, scientifically supported products.

My philosophy in aesthetic medicine has always been the same: we are not trying to transform a face, but to help the skin age better, keeping a fresh, healthy and natural appearance. In that context, peptides are a very promising tool and, when properly indicated, can offer very satisfying results.

I hope I have resolved your question. Warm regards.