Modern approaches to weight loss go far beyond diets and exercise. One of the most promising areas of medical science is peptide drugs —short chains of amino acids that act as signaling molecules regulating metabolism, appetite, and energy balance.Peptides have opened a new era in the treatment of obesity, metabolic syndrome, and carbohydrate metabolism disorders …
Modern approaches to weight loss go far beyond diets and exercise. One of the most promising areas of medical science is peptide drugs —short chains of amino acids that act as signaling molecules regulating metabolism, appetite, and energy balance.
Peptides have opened a new era in the treatment of obesity, metabolic syndrome, and carbohydrate metabolism disorders by targeting the body’s fundamental biochemical mechanisms.

The main types of peptides for weight loss
1. Semaglutide
- reduces appetite and food cravings;
- slows down gastric emptying;
- improves tissue sensitivity to insulin;
- promotes gradual weight loss by 10–15% with long-term use.
2. Tirzepatide
A unique dual agonist of the GLP-1 and GIP receptors , making it more effective than classic GLP-1 analogues.
Benefits:
Average weight loss in clinical trials was up to 22% of body weight .
Commercial names: Mounjaro, Zepbound.
3. Retagrutide is a new generation peptide
A triple agonist of the GLP-1, GIP, and glucagon receptors , which not only reduces appetite but also activates thermogenesis and fat oxidation . This drug is currently in clinical trials and has already demonstrated results of over 24% body weight loss.
4. Adipatide and MOTS-c
Metabolic peptides that influence mitochondrial activity and fatty acid oxidation .
They improve the functioning of cellular energy systems, increasing calorie expenditure even at rest.
Pure peptide or cocktail: what’s the difference?
- A pure peptide is an isolated molecule with a precise mechanism of action, such as tirzepatide . Its advantage is a predictable effect and high clinical evidence.
- A peptide cocktail is a combination of several bioregulatory peptides, vitamins, amino acids, and microelements designed to provide comprehensive support for the metabolism, liver, endocrine, and nervous systems.
Such mixtures are often used in aesthetic and integrative medicine for gentle weight management , tone, and detoxification.
For example, at ANS Clinic Marbella, personalized protocols are used where a peptide component (GLP-1, MOTS-c or AOD-9604) is combined with intravenous cocktails of NAD+, lipoic acid, methionine and carnitine to stimulate metabolism and support the liver.
Clinical outcomes and safety
Peptide therapy has proven effective in weight management programs, particularly in patients with insulin resistance, prediabetes, and obesity.
- reduction of insulin and glucose levels in the blood;
- reduction of visceral fat;
- improvement of lipid profile;
- increasing resistance to stress and improving sleep.
Side effects are usually mild: nausea, loss of appetite, and temporary gastrointestinal upset. It is important that therapy be determined by a physician, taking into account the patient’s biochemical analysis and metabolic profile.
Peptides have become a new generation of metabolic therapy—safe, physiological, and highly personalized.
The development of dual and triple agonists (such as tirzepatide and retagrutide) allows them to be considered not simply as weight-loss drugs, but as tools for biomolecular rejuvenation and metabolic age correction .
You can get a consultation on the use of peptides in our clinic +34660733093






