S-4

Anubis features S-4 (Andarine), a compound developed for investigative purposes related to bone and muscle preservation. It has been studied in non-human models for its selective binding to androgen receptors.

Vanguard Laboratory

28, JUNE 2025

Mass spectrometry is a high-tech tool used in labs to figure out what’s in a substance—like the stuff in SARMs. It works by breaking a sample into charged particles, sorting them by their weight, and identifying what each one is.
This helps scientists confirm the purity, potency, and exact makeup of the compounds you're putting in your body—ensuring you’re getting what the label says, nothing more, nothing less.