What research actually says about Tongkat Ali, Ashwagandha, Shilajit, Maca, Fenugreek, Horny Goat Weed and the rest — and what each compound contributes to the male vitality picture.
🔥 SodaPeak Editorial · September 6, 2026 · 8 min read
Quick Answer
SodaPeak's eleven ingredients each address a distinct mechanism. Tongkat Ali is the strongest testosterone production ingredient with direct LH and Leydig cell evidence. Ashwagandha leads on cortisol-mediated testosterone suppression. Shilajit is uniquely positioned for mitochondrial energy and mineral testosterone support. Fenugreek works on free testosterone via SHBG inhibition. Maca and Tribulus address drive and stamina independently of hormonal levels. Horny Goat Weed and L-Arginine address nitric oxide and blood flow. Panax Ginseng covers broad-spectrum energy and performance. Irish Sea Moss provides the mineral foundation. Manuka Honey delivers the bioavailability base.
No botanical in SodaPeak has more targeted human trial evidence for testosterone than Tongkat Ali (Eurycoma longifolia). Its bioactive quassinoid compounds stimulate Leydig cells to produce testosterone, inhibit SHBG binding, and suppress aromatase activity to reduce testosterone-to-oestrogen conversion. Multiple randomised controlled trials in healthy men have documented increases in free testosterone and LH after 4 to 12 weeks at 200 to 400mg daily — making it one of the few adaptogens where the effective dose is well characterised in humans.
Ashwagandha (Withania somnifera) is the most clinically studied adaptogen in men's health research. Its withanolide compounds work primarily through cortisol suppression — and because cortisol directly suppresses testosterone production via the HPA axis, reducing cortisol restores the hormonal environment in which testosterone can normalise. Multiple trials at 300 to 600mg of KSM-66 extract daily have documented both cortisol reduction and secondary testosterone improvements alongside improvements in energy, stress and sexual function.
Shilajit works through mineral and mitochondrial pathways rather than hormonal ones. Its fulvic acid improves CoQ10 bioavailability — the electron carrier driving ATP synthesis in mitochondria — translating to sustained energy rather than acute stimulation. Its mineral content includes zinc, selenium and magnesium, direct cofactors in testosterone biosynthesis. A 2015 RCT in Andrologia documented significant increases in total testosterone, free testosterone and DHEAS in healthy men taking 250mg Shilajit twice daily for 90 days.
Maca (Lepidium meyenii) is one of the most interesting ingredients in SodaPeak because it improves libido and energy through mechanisms that appear independent of testosterone levels. Multiple trials have documented improved sexual drive and physical energy without corresponding changes in measured testosterone — suggesting Maca works through central and adaptogenic pathways that operate in parallel to the testosterone mechanisms. This makes it genuinely complementary rather than redundant.
Fenugreek's furostanolic saponins inhibit SHBG, the protein that binds testosterone and renders it unable to activate androgen receptors. In men with high SHBG — increasingly common with age — fenugreek can meaningfully increase the free testosterone fraction without changing total production. A 2011 study in Phytotherapy Research documented improved free testosterone in men taking standardised fenugreek extract over 8 weeks.
Horny Goat Weed's icariin works as a mild PDE-5 inhibitor — the same enzyme class targeted by pharmaceutical erectile support drugs, though at botanical rather than pharmaceutical concentrations. L-Arginine is the direct dietary precursor to nitric oxide, signalling blood vessel smooth muscle to relax and widening passages blood flows through. Together they address the blood flow and erection quality dimension from two complementary angles simultaneously.
Panax Ginseng's ginsenoside compounds have been studied in more clinical contexts than any other adaptogen — energy, cognitive function, sexual performance and immune function all have supporting trial data. Irish Sea Moss provides 92 of the minerals the human body uses, including zinc, magnesium and iodine for thyroid function — the broad mineral base that all hormonal processes depend on. Manuka Honey is the natural carrier that makes the gummy format work while contributing antioxidant protection, natural glucose for immediate energy and prebiotic support for the gut microbiome.
SodaPeak — From $49/bottle · 60-Day Guarantee
Order Now