By Vincent Caradec, Co-Founder & CEO, Healthi Life
Any medicine or peptide named in this article is dispensed at Healthi Life only after a medical consultation and on a physician's prescription. It is named for clarity, not offered for supply.
You have probably seen the word everywhere this year: in podcasts, on social feeds, in the waiting room. Peptides. Everyone seems to have an opinion, and few can tell you what one is.
Here is a plain version, written by someone who runs a doctor-led longevity house in Bangkok and gets asked about this every week.
Your body is built from proteins, and proteins are built from amino acids. A peptide is a short chain of amino acids, shorter than a protein. Your body makes thousands of them naturally, and many act as messengers. One tells your pancreas to release insulin. Another helps signal that you are full after a meal.
Peptide-based medicines borrow that idea. They are designed to nudge one of those signals up or down. That is why the word covers products as different as a diabetes medicine and an experimental compound that exists only in a research paper.
If you remember only one thing from this article, make it this: peptides are not one category. They sit in three groups, and the group tells you almost everything about the risk.
1. Approved. The medicine has been evaluated by a drug regulator, with trial data behind it, and has a labeled use. Semaglutide is an example; its large trials include STEP 1, published in the New England Journal of Medicine in 2021. So is tirzepatide, which acts on two gut hormone pathways, GIP and GLP-1, and was studied in SURMOUNT-1, published in the same journal in 2022. Both are prescribed by physicians and come with documented side effects. Approved does not mean harmless. It means there is an evidence base and a defined way to monitor it.
2. In progress. The compound is moving through clinical trials and has not finished the regulatory process. Early results can be promising and still not hold up. Treat it as unproven until the process ends.
3. Never evaluated. Many products sold online as peptides have never entered a regulatory process at all. Nobody has formally assessed whether they are safe, effective or even what the label says. The bottle may look the same as one from the first bucket. The evidence behind it is not.
A useful test: ask a seller which of the three buckets a product belongs to. A physician can answer in one sentence. A marketing page tends to change the subject.
Approved or not, a peptide is not a supplement. It acts on how your body signals hunger, hormones, growth or repair. It can interact with other medicines and conditions. The right dose depends on your health history and your blood work, not on a friend's routine.
That is why, at Healthi Life, protocols begin with a physician consultation. On our peptide page it lasts 20 minutes, costs ฿2,500 and is required before any protocol. It is also where a doctor may tell you that a peptide is not appropriate.
You do not need jargon. Try these:
"I've been reading about peptides. Which of the three groups would any of them belong to?"
"What would you want to check in my blood before we even discuss it?"
"Is there a lower-risk step, like sleep, strength training or nutrition, I should try first?"
"If we started something, how would we know it works, and when would we stop?"
"Where does the product come from, and can I see the testing?"
Then listen to how the doctor answers. A good one separates evidence from enthusiasm, and will say "I don't know" when that is the case.
A responsible program has a shape. A consultation first. Baseline blood work. A prescription only if it is warranted. Physician follow-up within 30 to 90 days, then quarterly reviews, with a plan to stop or reassess. Our page sets program length at 3 to 12 months and states that each lot carries a Certificate of Analysis.
If you are curious what that looks like, our physician-prescribed peptide program page explains the consultation, the published unit prices and the review schedule. Compare it with whatever your own doctor proposes.
Peptides are neither a miracle nor a scam. They are a broad family of tools, some well studied, some barely studied, and the difference is invisible on a product label. Ask which bucket, ask for the testing, and ask who will be watching your results.
Peptides at Healthi Life are given only after a medical consultation and on a physician's prescription. Individual responses vary. This article is for general information and is not medical advice.
Vincent Caradec is co-founder and CEO of Healthi Life, a doctor-led longevity house in Ekkamai, Bangkok, whose guests come from more than 50 countries.
This article is sponsored by Healthi Life.
MBTpg/MSM