Peptides are short chains of amino acids — the same building blocks that make up proteins, just in smaller, more targeted forms. Where a protein might be hundreds or thousands of amino acids long, a peptide is typically 2 to 50 amino acids. Because of their smaller size, peptides act as precise signalling molecules, telling cells to perform specific functions: repair tissue, regulate metabolism, stimulate collagen production, and so on.

Traditional supplements like vitamins and minerals work by providing nutrients your body needs to perform its normal functions. Peptides work differently: they act as signalling molecules that instruct your cells to do something specific. This makes them more targeted but also more potent, which is why dosing and protocols matter more than with a typical supplement.

In most jurisdictions, peptides should be prescribed or recommended by a qualified physician. Vitals works with licensed Thai medical professionals to ensure every peptide protocol is appropriate for the individual. During checkout or at the results stage of the peptide quiz, customers are guided through a medical consultation before purchase.

Legality varies by specific compound and by the delivery format (oral, topical, or injectable). Vitals only sells peptides that are cleared through the appropriate Thai regulatory pathways and has ongoing registrations with the Thai FDA. If you see a peptide on our site, it has been cleared for sale in Thailand.

Most peptides ship as a lyophilised (freeze-dried) powder and need to be reconstituted with bacteriostatic water before use. Reconstitution is simple: draw the correct volume of bacteriostatic water into a syringe, inject it slowly down the side of the peptide vial, then swirl gently — do not shake. Once reconstituted, peptides are drawn into an insulin syringe and injected subcutaneously into the fat layer beneath the skin, typically in the abdomen or thigh. Your Vitals protocol guide includes step-by-step instructions with images for your specific peptide.

Before reconstitution, peptides can be stored at room temperature in a cool, dry place away from direct sunlight. Once reconstituted with bacteriostatic water, they must be refrigerated and used within approximately 30 days. Never freeze reconstituted peptides. Each peptide's specific storage guidance is provided with your order.

Timelines depend on the peptide and your goal. Recovery and injury peptides (BPC-157, TB-500) often produce noticeable effects within 1–2 weeks. Metabolic and performance peptides (MOTS-C, Tesamorelin) typically show results at 4–8 weeks. Aesthetic peptides (GHK-Cu) work gradually — expect visible changes at 8–12 weeks. Weight management compounds like Retatrutide produce measurable weight loss within the first month of proper titration.

Yes, many peptides are designed to work together and have well-established stacking protocols. BPC-157 and TB-500 are the most common recovery stack. MOTS-C and NAD+ are often combined for longevity and energy. Our peptide recommendation quiz will suggest a primary compound plus a stacking option where appropriate, and your medical consultation will confirm the right combination for you.

Peptides sourced from reputable suppliers, dosed correctly, and used under medical guidance have strong safety profiles. Every compound Vitals sells is third-party tested for purity and potency. The most common side effects are mild and local — minor injection site reactions, transient redness, or occasional mild fatigue during the first week of a new protocol. Serious side effects are rare with appropriate dosing.

Reconstitution is the process of mixing a powder peptide with bacteriostatic water so it can be injected. Peptides are shipped as dry powder because they are more stable that way during transit and storage. Once you begin a protocol, you add the water, which turns the powder into an injectable solution. We include detailed reconstitution instructions with every order.

Most peptides in the Vitals catalogue are injectable, delivered via a small insulin syringe under the skin. The needles are tiny (around 30–31 gauge) and the injection is generally painless. A few peptides — notably GHK-Cu — are available as topical applications. If you prefer non-injectable options, the quiz will take that preference into account when making recommendations.

In most cases, yes. Peptides work on different cellular pathways than most vitamins and supplements, so they generally combine well. However, if you are on prescription medications — particularly for diabetes, thyroid conditions, or hormone therapy — it is essential to clear your peptide protocol with your physician first. Our medical consultation process screens for known interactions before any protocol is dispensed.