Recovery & Sleep

Leucine, Isoleucine, Valine (typically in a 2:1:1 or 4:1:1 ratio)

A supplement consisting of three essential amino acids — leucine, isoleucine, and valine. Multiple meta-analyses report a moderate reduction in delayed onset muscle soreness (DOMS), supporting post-exercise recovery. However, when total protein intake is already adequate, the incremental benefit of additional BCAA supplementation on muscle protein synthesis appears to be limited.

Hydrolyzed Collagen Peptides (Type I/II/III)

A supplement providing hydrolyzed collagen peptides — the primary structural protein in tendons, ligaments, cartilage, and skin. RCTs suggest that co-ingestion with vitamin C may stimulate collagen synthesis in tendons and ligaments. Direct effects on muscle hypertrophy are limited, but research supports its role in joint health maintenance and injury prevention.

Nine essential amino acids: leucine, isoleucine, valine, lysine, methionine, phenylalanine, threonine, tryptophan, and histidine

A product containing all nine essential amino acids that the body cannot synthesize on its own. Research suggests that having the full complement of essential amino acids available is advantageous for muscle protein synthesis. BCAAs alone may leave other essential amino acids in short supply, and EAA is thought to provide a more complete substrate.

Beta-Hydroxy Beta-Methylbutyrate (HMB-Ca or HMB-FA)

HMB is a metabolite of leucine that research suggests may act on both the inhibition of muscle protein breakdown and the promotion of muscle protein synthesis. Evidence supporting its role in preserving lean mass is comparatively stronger in beginners, older adults, and those in a caloric deficit, while results in trained individuals seeking hypertrophy remain mixed across meta-analyses.

Taurine (2-aminoethanesulfonic acid)

Taurine is a sulfur-containing amino acid synthesized in the body that is known to play roles in antioxidant defense, cell membrane stabilization, and electrolyte balance regulation. Several RCTs have reported improvements in aerobic performance and reductions in post-exercise muscle damage markers and DOMS. While widely recognized as an energy drink ingredient, a growing body of research has examined its effects as a standalone supplement.

Curcumin (turmeric-derived polyphenol)

The yellow polyphenol pigment of turmeric. Meta-analyses of RCTs report reduced post-exercise inflammatory markers (CRP, IL-6, TNF-α) and less delayed-onset muscle soreness (DOMS), via suppression of the NF-κB pathway. Plain curcumin has very low bioavailability (~1%), which piperine (black pepper) is reported to raise about 20-fold.

Withania somnifera root extract

An adaptogen herb used in Ayurvedic medicine. Multiple RCTs have confirmed associations with reduced cortisol, improved sleep, and enhanced muscle strength — making it one of the better-researched natural supplements.

EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid)

Polyunsaturated fatty acids EPA and DHA, widely studied for anti-inflammatory, cardiovascular, and cognitive benefits. In sport contexts, RCTs suggest benefits for muscle protein synthesis and post-exercise inflammation, though effect sizes are moderate and sample sizes small.