Compare Supplements

Side-by-side comparison of 1 supplements

S233.0

S-23

Limited safety

Evidence

Evidence Score3/10

Studies: 5

Meta-analyses: 0

Dosage & timing

Dosage:

No legitimate or recommended dose — S-23 is an unapproved grey-market research chemical with no human efficacy or safety data and no quality control. We do NOT provide a dosing protocol. The only systematic dosing is in rats (sub-milligram per day, by the route used in those studies), and it was studied to SUPPRESS fertility. Human anti-doping studies have given microgram-to-low-milligram single oral doses purely to characterize detection, not to establish a safe or effective dose.

Best Time:

Any time

Can take on empty stomach

Form:

None — unapproved grey-market research chemical

What you'll notice

ℹ️ No human efficacy or safety dataneutral

Throughout

💪 Increased lean mass & bone, reduced fat (rats)neutral

Weeks (in rats)

🚫 HPTA & fertility suppression (rats) — the contraceptive trade-offnegative

Weeks (in rats); reversibility/severity in humans unknown

Safety

Limited safety

Contraindications:

Not an approved medicine and not a regulated dietary supplement — unapproved grey-market research chemical; do not self-source
No human efficacy or safety data exists — every safety conclusion would be an extrapolation from rats
Anyone trying to conceive or preserve fertility — S-23 was developed to suppress spermatogenesis

Drug Interactions:

Testosterone / anabolic steroids
Any prescription medication

Side Effects:

HPTA suppression / infertility (the intended contraceptive effect in animals)Androgenic effects (prostate, lipids, virilization)Harm from an unregulated, mislabeled product

Want to compare more supplements?

Loading comparison...