Peptide tools

Peptide status checker

Two questions decide most of what matters before you buy a peptide: can a licensed US pharmacy legally supply it, and has anyone tested it in people for the thing it is being sold for. The answers are frequently no and no, and they are rarely on the seller’s page. Here they are for the 12 peptides we track.

Filter by evidence grade

Gonadorelin
Testosterone & fertility axis
Evidence A
Regulatory standing
Held FDA approval historically, as Factrel and Lutrepulse, for diagnostic and fertility use. Supply now is commonly compounded.
PT-141
Desire & arousal
Evidence A
Regulatory standing
Approved as Vyleesi (bremelanotide) for HSDD in premenopausal women. Also supplied compounded, off-label.
Tesamorelin
Visceral fat, approved use
Evidence A
Regulatory standing
Approved as Egrifta for HIV-associated lipodystrophy. Use beyond that indication is off-label and supplied compounded.
NAD+
Energy & cellular aging
Evidence B
Regulatory standing
No FDA approval as a drug. Reaches people either as a compounded injectable or IV, or over the counter as the precursors NR and NMN.
Sermorelin
Own growth-hormone output
Evidence B
Regulatory standing
A prescription peptide whose historic FDA approval covered diagnostic use. Everything dispensed today is compounded.
BPC-157
Tendon & gut repair
Evidence C
Regulatory standing
Unapproved, and FDA went further than that: in 2023–2024 it placed BPC-157 in a category that restricts compounding. The human data remains largely preclinical.
CJC-1295 / Ipamorelin
Own growth-hormone output
Evidence C
Regulatory standing
Not FDA-approved; supplied compounded.
GHK-Cu
Skin & hair repair
Evidence C
Regulatory standing
Unremarkable as a cosmetic ingredient. The therapeutic injectable forms hold no FDA approval and are supplied compounded.
Glutathione
Antioxidant infusions
Evidence C
Regulatory standing
Carries no FDA approval for anti-aging or for skin lightening. Supplied compounded for injection or IV, or as an oral supplement.
Ipamorelin
Own growth-hormone output
Evidence C
Regulatory standing
Not FDA-approved; supplied compounded.
TB-500
Soft-tissue recovery
Evidence C
Regulatory standing
No FDA approval. Sold for research use or supplied compounded, on an evidence base that has not reached human outcome trials.
MOTS-c
Mitochondrial claims, mouse data
Evidence D
Regulatory standing
No FDA approval for any indication and no DailyMed listing at all. Sold online almost entirely as an unregulated research chemical.

What the grades mean

The grade describes the evidence behind the use the peptide is marketed for, which is not always the use it was studied for. A peptide can hold an FDA approval for one narrow indication and be sold for something else entirely, and the grade reflects the second.

A low grade is not a claim that something does not work. It is a statement that nobody has shown that it does, which is a different thing and the one worth knowing before paying for it.

Why “not eligible for compounding” matters more than it sounds

When the FDA places a substance outside the bulk drug substances that may be used in compounded preparations, licensed US pharmacies can no longer supply it. Demand does not stop, so supply moves to sellers operating outside that system, usually labeled for research use.

Nothing then verifies identity, purity or strength. What arrives may be a different quantity than the label says, may be contaminated, or may be a different sequence altogether — and there is no recall mechanism and nobody to hold responsible. That is the practical meaning of the status line on each row above.

Peptide reconstitution calculator — micrograms to syringe units, for a prescribed dose.
The peptide register — what is actually known about each one, source by source.
FDA warning letters — sellers the FDA has written to, and what it said.

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