Support muscle growth and power. Ranked by evidence strength from 33 supplements backed by peer-reviewed clinical research.
Increases phosphocreatine stores for faster ATP regeneration, boosting strength, power output, and cognitive function under stress.
5-15% strength gains
Complete protein with high leucine content that maximizes muscle protein synthesis — most researched protein supplement worldwide.
Enhanced muscle protein synthesis
Forms a stomach gel for 6-8 hours of sustained amino acid release — ideal for overnight muscle recovery and anti-catabolism.
Reduced muscle breakdown, sustained muscle protein synthesis
Complete essential amino acid blend that maximizes muscle protein synthesis — superior to BCAAs alone.
Enhanced muscle protein synthesis
Combines citrulline for nitric oxide production with malic acid for ATP synthesis — reduces fatigue and enhances exercise endurance.
More reps, better pumps, reduced soreness
Southeast Asian herb with evidence for supporting healthy testosterone levels, energy, and stress resilience.
May increase testosterone, especially if low or stressed
Traditional herb with evidence for supporting testosterone, libido, blood sugar control, and lactation.
Modest increase in testosterone and libido
Increases muscle carnosine to buffer acid during high-intensity exercise, extending endurance for 1-4 minute efforts.
More reps at higher intensities
Phytoecdysteroid that activates PI3K/Akt pathway to enhance muscle protein synthesis and strength — no hormonal side effects.
Enhanced muscle protein synthesis and strength
Trace mineral that influences testosterone metabolism, strengthens bone density, and supports cognitive function — often deficient in modern diets.
May increase free testosterone, especially if deficient
Leucine metabolite that helps prevent muscle breakdown and supports recovery, especially during caloric restriction or intense training.
Preserves muscle during caloric restriction
Amino acid that boosts nitric oxide production, improving blood flow, exercise performance, and recovery.
May improve high-rep performance
Himalayan mineral pitch rich in fulvic acid and 80+ minerals — supports testosterone, mitochondrial function, and cellular energy.
May increase testosterone levels
Saponin-rich herb that consistently improves libido and sexual function, though evidence for testosterone elevation remains weak.
Enhanced libido and sexual desire
Reduces cortisol and anxiety while improving sleep quality and physical recovery in stressed adults.
Modest strength and muscle gains
Leucine, isoleucine, and valine metabolized directly in muscle tissue — support protein synthesis and reduce exercise fatigue.
Muscle protein synthesis support
Desert adaptogen used for 1,800+ years in Chinese medicine to support testosterone, cognitive function, and gut health.
Support for healthy testosterone levels
Dark chocolate flavonoid that inhibits myostatin and boosts follistatin, supporting muscle growth, endurance, and cardiovascular health.
Potential myostatin inhibition and enhanced muscle growth
Contains L-DOPA, the direct dopamine precursor — supports mood, motivation, and reproductive health but requires careful dosing.
May support reproductive hormones
Nigerian shrub with preliminary evidence for testosterone and libido support — popular but human research is still very limited.
Potential testosterone support (limited evidence)
Involved in 300+ enzymatic reactions — supports immune defense, testosterone production, wound healing, and sleep quality.
Testosterone support if deficient
Crosses the blood-brain barrier to fuel acetylcholine synthesis — supports focus, memory, and power output in athletes.
Possible power output improvement
Primary substrate for nitric oxide production — dilates blood vessels to improve circulation, exercise performance, and cardiovascular health.
Improved muscle pump and nutrient delivery
Andean root that boosts energy and libido through hormonal signaling modulation — different colors (red, black, yellow) have distinct effects.
May improve libido without changing hormone levels
Primary intracellular electrolyte that regulates blood pressure, nerve transmission, and muscle contraction — works in balance with sodium.
Proper muscle function and reduced cramps
Hormone-like vitamin that regulates 1,000+ genes — deficiency is widespread and linked to poor immunity, depression, and bone loss.
Supports muscle protein synthesis and bone mineral density
Arginine metabolite that modulates NMDA receptors and nitric oxide — supports mood, pain management, and neuroprotection.
Improved muscle pumps via NO modulation
Recovery-optimized form of carnitine with evidence for muscle recovery, androgen receptor upregulation, and exercise performance.
Supports recovery from resistance exercise via androgen receptor upregulation
Supports 300+ enzymatic reactions — critical for sleep, stress response, muscle function, and cognitive health.
Supports muscle contraction and ATP production for strength
Adrenal hormone precursor that declines with age, supporting hormone balance, energy, and body composition.
Modest anabolic effects via androgen precursor activity
Proven ergogenic aid that buffers lactic acid, extending high-intensity exercise capacity by 1-3%.
Buffering capacity extends high-intensity work sets
Fat-soluble vitamin that directs calcium to bones instead of arteries, supporting cardiovascular and bone health.
Activates osteocalcin for bone mineralization and density
Builds and maintains bone density while supporting muscle contraction, nerve signaling, and cardiovascular function.
Supports muscle contraction and bone density required for strength training
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Select This Goal + Pick MoreThis information is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before starting any supplement.