Know who to trust before you spend a dollar.
We check every vendor selling research peptides, publish what we find, and show you what a fair price looks like. Written for women in midlife, by one.
Every vendor in the index is checked against the same 11-point rubric across 6 categories, and the grade we publish is the grade we found. That has been true since the first review.
Price is one signal. Trust is the filter.
Read the full review →What brought you here?
Skin, collagen and texture
Which claims have data behind them, and which are sales copy
GHK-Cu · BPC-157 · 6 guides
Metabolism and weight
Midlife metabolism, without the gym-forum math
Retatrutide · Tirzepatide · 9 guides
New to peptides
Start Here: the four things to read before you buy anything
About twenty minutes · 4 guides
Somebody should be checking these vendors.
So we do. Every vendor in the index is checked against the same 11-point rubric across six categories: COA access, product consistency, site transparency, discount behaviour, shipping reliability, and how they treat a customer when something goes wrong. Then we publish the grade, whatever it says.
Check vendor trust scoresOne rubric, every vendor. The same checks asked of the biggest name in the index and the newest one.
A grade can move either way. We re-check vendors, and a review can go down as easily as up.
Codes appear when they’re useful. Every code we know of, not only the ones that pay us.
The best deal isn’t always ours. If a vendor’s own sale beats our code, we send you to the sale.
What a peptide actually costs
The lowest and highest prices we found today across every vendor we track, and how the lowest one has moved over the last three months.
“I built this for the woman reading peptide forums at midnight, trying to separate actual research from sales copy.”
How we stay free without selling the rankings.
We use affiliate codes, but only when they’re genuinely the better deal. If a vendor is running a 30% weekend and our code earns you 15%, we point you at the sale. The small commission those codes earn is what keeps the Lab free, ad-free, and beholden to no vendor.
What a vendor earns us has never touched what we publish about them. Read the full affiliate policy →
One short letter each week on a peptide worth understanding, written for women in midlife. Free, and no homework required.