non-nutrient/non-botanical
S-23 supplements
Half of the 5 S-23 supplements in the NIH label database that print an amount list 30 mg or less per serving; the middle half list 30 mg to 30 mg (DSLD version 9.4.0, January 2026).
- Products listing it
- 55 print an amount
- Median per serving
- 30 mgmiddle half 30 mg to 30 mg
How much S-23 do supplements contain?
The median product lists 30 mg per serving. One in ten lists 21 mg or less, one in ten 30 mg or more. The amount printed most often is 30 mg (4 products).
Products by amount of S-23 per serving
5 products, log scale; extreme 0.2% at each end left out of the drawing.
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most S-23?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
In which products and brands?
Products listing S-23 by DSLD product type
Brands listing it most: Swoll Mafia (3), Medfit RX (1), Entropic Labs (1).
Every product listing S-23
5 products, A to Z by name (page 1 of 1), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- JackedSwoll Mafia · off the market30 mg
- Lucky SARMsMedfit RX · off the market15 mg
- S-23Swoll Mafia30 mg
- S23Entropic Labs30 mg
- SwollSwoll Mafia30 mg