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Fadogia agrestis

Also known as

Fadogia · Black aphrodisiac · Baakin gagai · Fadogia agrestis stem extract · Fadogia agrestis (Schweinf. Ex Hiern) · Fadogia agrestis (Rubiaceae) · Nigerian fadogia (marketplace shorthand) · FA (forum shorthand) · Fadogia + Tongkat stack (combo product context)

Community talk. May be wrong. Not medical advice. Not a protocol. Not for human or animal use.

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Non-peptide Niche talk Systemic Oral extracts / stem preparations Herbals in hormone discourse

Systemic oral plant extract discussed for libido and hormone effects; human efficacy, pharmacokinetics, and product equivalence are not established.

What people say Fadogia agrestis is an oral botanical extract discussed for libido and testosterone. The cited efficacy and toxicity work is in rats, while human dose, benefit, pharmacokinetics, long-term safety, and product equivalence remain unestablished. Doses people talk about
Retail and podcast discussionAbout 300–600 mg/day

Commonly repeated human self-experiment and label range, often with Tongkat Ali and without verified extract equivalence.

One six-week self-report600 mg/day

Anonymous user reported better erections or libido but no testosterone increase; product identity and conditions were uncontrolled.

Rat studies18 / 50 / 100 mg/kg daily

Aqueous stem extract in short sexual-behavior work and 28-day toxicity studies; not a human conversion.

Retail milligrams, extract ratios, and rat mg/kg exposures are not interchangeable; none establishes a human therapeutic dose or progression.

Half-life & effect duration

Half-life in the body
  • Commercial extractsNo settled estimate
Felt duration people report
  • Libido / drive reportsChanges after a few days to a few weeks
  • During continued useFading by about 1 month in some accounts; steady drive across 8–12 weeks in others
  • Other accountsNo effect after 6 weeks, or adverse effects in stacks
Timing context & sources
How it may feel Human reports conflict: some describe libido, erection, testicular fullness, or drive changes over days to weeks; others report no laboratory or subjective change, anxiety, pain, or worsened libido. Tongkat Ali and larger stacks often prevent attribution.
Cycles people discuss On/off patterns are common in community discussion because of animal organ and testicular toxicity signals and missing long-term human data. Cycling itself is not a proven risk-control or efficacy protocol. Timing No reliable human half-life, Tmax, bioavailability, or per-dose felt window was found. Once-daily habits and multi-week laboratory checks reflect community practice, not measured pharmacokinetics. Stacks Tongkat Ali is the dominant co-use context, with additional minerals and multi-ingredient products making subjective and laboratory attribution difficult. Watch for Testis function flags (animal, Yakubu 2008): 28-day oral aqueous stem extract at 18, 50, and 100 mg/kg altered testicular function indices in rats (↑ testes–body weight ratio, ↑ testicular cholesterol/sialic acid/glycogen and some enzyme activities; ↓ alkaline phosphatase, protein, and other markers). Recoveries after washout were partial and better discussed mainly at the lowest (~18 mg/kg) arm; higher arms (50–100 mg/kg) carried stronger adverse-function language.
Related
Boron

Tap a line to jump into the full notes. Research only — may be wrong.

Timing context & sources

Half-life in the body

No dependable human pharmacokinetic half-life was found for commercial Fadogia extracts.

Daily retail habits and multi-week hormone panels are not measurements of compound clearance.

Botanical preparations are chemically heterogeneous, and the checked animal efficacy and toxicity papers do not supply transferable human product PK.

Felt duration people report

The checked accounts do not establish a reproducible felt-duration window.

Reports include a few days to a few weeks before libido or drive changes, no effect after six weeks, and adverse or fading effects during larger stacks.

Anonymous reports, unverified extracts, old or missing baselines, multiple supplements, lifestyle changes, expectation effects, and selective follow-up prevent causal timing estimates.

  • Got any noticeable results from Fadogia agrestis? (opens in a new tab)Commenters describe larger or fuller testes and slight libido change over bottles or weeks; another reports 600 mg daily for six weeks with better erections or libido but no testosterone change.Anonymous, uncontrolled reports with unverified products, unclear baselines and selective follow-up.
  • Did Tongkat Ali and Fadogia agrestis work for anyone? (opens in a new tab)Original post and replies describe a large supplement stack including 600 mg Fadogia and 400 mg Tongkat, effects after five to seven days, later decline, no-change reports, anxiety, pain and adverse anecdotes; same-author updates add changing libido and attribution issues.Large changing stacks, anonymous users, unverified products, symptom self-diagnosis, no controlled baseline and inconsistent follow-up.
  • Interesting blood work before and after Fadogia agrestis (opens in a new tab)Poster reports total testosterone increasing from 306 to 508 with LH and prolactin changes during a heavy supplement stack; a later follow-up says Fadogia was stopped and Tongkat was cycled while midrange testosterone persisted.Old baseline, multiple supplements and lifestyle variables, anonymous self-report and no product verification make attribution impossible.

What people say 12

  • Libido tradition: Nigerian folklore and modern logs treat higher sexual interest as the main traditional draw (“black aphrodisiac” / Baakin gagai). forum
  • Podcast-era total-T anecdote: Huberman has described personal total-T rising on the order of ~200 ng/dL (roughly ~600s into high 700s / low 800s in retellings) while using Tongkat + Fadogia together for years — uncontrolled, dual-herb, lifestyle-confounded. anecdote
  • Subjective free-T / drive: Users report morning wood, libido, “drive,” and training motivation over weeks; labs almost always confounded by Tongkat, sleep, fat loss, boron/zinc/D, or training. forum
  • Self-reported bloodwork mixed: Forum panels (r/Testosterone, r/Supplements, r/HubermanLab, r/PeterAttia-class threads) range from free-T wins (including multi-week dual-stack free-T rises), to flat total-T, to occasional total-T drops on the same ~400 mg Tongkat + ~600 mg Fadogia template — no consistent controlled pattern. anecdote
  • Erection / arousal anecdotes: Subset claims easier arousal or firmer erections on-cycle; no solid human ED trials. anecdote
  • Training mood / recovery lore: Some link “aggressive” gym mood, recovery feel, or recomp drive; hard to isolate from caffeine, sleep, calorie deficit, or placebo. anecdote
  • Onset talk (community): Momentous-class comparison content and forums often frame anecdotal onset around ~1–3 weeks for subjective effects if anything will show; others wait full 4–8 week blocks before judging. forum
  • vs Tongkat expectation setting: Community often treats Tongkat as better-evidenced (human RCTs/meta-analyses exist) and Fadogia as the speculative LH-side add-on in the same bottle or stack. forum
  • Null / negative responders: Plenty of logs report no libido change and no lab movement — used as argument for extract quality lottery or for dropping Fadogia while keeping Tongkat. forum
  • Rodent sexual behavior (Yakubu et al. 2005, Asian J Androl): Aqueous stem extract at 18, 50, and 100 mg/kg oral (dosed at 24 h intervals; sexual metrics on days 1, 3, 5) increased mount and intromission frequency, prolonged ejaculatory latency, and reduced mount/intromission latency vs control in male albino rats. animal
  • Rodent testosterone (same 2005 line): Serum T rose in a dose-related pattern; secondary summaries of the high arm (~100 mg/kg) often cite multi-fold (including ~6×) increases vs control by study end — still rats, short windows, aqueous extract not commercial 10:1/50:1 capsules. animal
  • Testicular weight / indices (animal): Higher relative testes–body weight ratio and shifts in testicular biochemical markers (cholesterol, sialic acid, glycogen, enzyme activities) reported at the same 18–100 mg/kg oral band used for aphrodisiac work — interpreted in toxicity papers as functional-index change, not pure “gain.” animal

Doses people talk about 19

  • Common podcast/media band: ~300–600 mg/day commercial stem extract is the dominant discussed range after Huberman-era coverage. forum
  • Huberman-associated daily figure: Frequently summarized as ~600 mg/day (sometimes framed 400–600 mg) while on-cycle, with cycling and bloodwork emphasized; he has also discussed the lower 300 mg end as a cautious band. forum
  • Aggressive media daily: ~600 mg once daily for those already blood-testing regularly is the most repeated “full” podcast dose. forum
  • Every-other-day (EOD) pattern (Gillett-adjacent): ~600 mg EOD discussed as lower cumulative load when labs are not frequent. forum
  • 3×/week pattern (Gillett-adjacent): ~600 mg Mon/Wed/Fri-style schedules appear as a caution-leaning alternative to daily. forum
  • Aggressive daily + short off (Gillett-adjacent): Daily 600 mg for ~1 month then 1–2 weeks off is one clinician-guest pattern cited when bloodwork is regular. forum
  • Higher marketplace outliers: Combo products and anecdotes sometimes list 1,000–1,200+ mg/day or multi-capsule stacks (including self-reports of 1,200 mg/day with claimed normal labs) — not evidence-backed ceilings; often discouraged next to animal organ flags. anecdote
  • Lower self-experiments: Some start ~150–300 mg/day or ~200 mg each of Tongkat + Fadogia before stepping toward media doses. forum
  • Body-weight conversion caveats: Vendor blogs sometimes translate rat mg/kg into hundreds–thousands of human mg; bro math that ignores aqueous vs commercial extract, species allometry, and 28-day toxicity windows is widely criticized. forum
  • Allometric scare math (community): Secondary articles sometimes claim common ~600 mg capsule culture can land near problematic animal-equivalent bands after allometric scaling — methods vary, and this is not clinical proof of human harm. forum
  • Timing: Once daily with food dominates; morning with the rest of a T stack (often with Tongkat) is common; split AM/PM is uncommon. forum
  • Empty stomach: Minority try empty stomach for “absorption”; more GI complaints reported that way. anecdote
  • With Tongkat co-dosing: Classic media stack is often ~400 mg Tongkat AM + ~600 mg Fadogia (same day while on Fadogia cycle); lower dual self-experiments (~200 mg each) also appear. forum
  • Quality flag: Same labeled mg ≠ same actives, plant part (stem vs whole plant), solvent, heavy metals, or contaminants across brands; third-party testing is uneven. forum
  • Conservative brand label band: Double Wood–class labels commonly suggest ~300 mg/day (one 300 mg capsule) as the labeled serving start; other bottles market 600 mg as one serving via two 300 mg capsules. forum
  • Extract-ratio math: Labels show 10:1, 20:1, 30:1, 50:1, etc.; 600 mg of 10:1 is not equal to 600 mg of 50:1 or to crude powder — forums argue “mg is not interchangeable” without assays or known solvent/plant-part identity. forum
  • Momentous comparison band (vendor framing): Their Tongkat-vs-Fadogia education content has framed Fadogia discussion doses around roughly ~425–850 mg/day of raw/powder-style material with standardization “not yet established” — treat as vendor discourse, not a trial. forum
  • Framing: Discussed marketplace/podcast/forum ranges for research education only — not advice, prescriptions, or a proven human therapeutic dose. No clinically established human dose exists. forum
  • Rodent context (not 1:1 capsules): Yakubu-line oral doses ~18, 50, and 100 mg/kg aqueous stem extract; folklore-linked low arm often cited as ~18 mg/kg. Human-equivalent conversions online are disputed and are not a clinical protocol. animal

How it may feel 8

  • Days 1–3: Most notice little systemic change; minority claim early libido “noise,” restlessness, mild stim-like edge, or GI if dose is high or empty-stomach. forum
  • Days 4–7: Still commonly flat; early morning-wood talk appears in some dual-stack logs but is not reliable. forum
  • Weeks 1–2: Common first subjective checkpoint for sexual interest, morning energy, or mood if anything will show; Momentous-adjacent onset language often lands here. forum
  • Weeks 3–4: Reassess — continue, drop dose, switch brand/ratio, or blame extract quality; many dual-stack self-experiments first pull symptoms here. forum
  • Weeks 4–8: Many run full on-blocks in this window; bloodwork-curious users often lab near end of block (total/free T, LH/FSH, E2, CBC/CMP). forum
  • Weeks 8–12: Matches common podcast-era “recheck labs then cycle off” habit for hormone markers (not measured PK); Huberman-style personal use often described as 8–12 weeks on. forum
  • No change ~4–6 weeks: Threads push sleep, body fat, training, Tongkat quality, and product ratio/assay — not automatic dose-up past ~600 mg/day culture. forum
  • Tolerance / fade talk: Some dual-stack users claim effects “work for a few weeks then fade” by ~1 month; others report stable subjective drive through a full 8–12 week block. anecdote

Cycles people discuss 13

  • Why cycle is discussed: Cycling is framed around animal testis/liver/kidney toxicity signals (Yakubu 2008/2009-line work) and missing long-term human data — not a proven efficacy protocol. forum
  • 8–12 weeks on, then weeks–month off: Common media pattern; Huberman-adjacent summaries often cite ~8–12 weeks on then a few weeks off, or ~12 weeks on with about a month off. forum
  • 8 on / 2 off: Explicit Huberman-adjacent variant frequently repeated in secondary guides. forum
  • 3 weeks on / 1 week off: Frequently repeated “prudent” pulse when stacking with Tongkat or when bloodwork is sparse; also appears in dual-stack cycle talk. forum
  • 2 weeks on / 1 week off: Appears in self-experiment logs (including Attia-subreddit-class posts using ~600 mg Fadogia in 2-on/1-off pulses) and some vendor-adjacent risk-reduction habits. forum
  • 4–8 weeks on / 2–4 weeks off: Vendor and guide language often lands here as a generic on/off example. forum
  • Time-on ≈ time-off: Some supplement blogs advise matching off length to on length after 4–8 week blocks. forum
  • 1 month daily / 1–2 weeks off: Gillett-adjacent aggressive pattern for people already labbing regularly. forum
  • EOD or 3×/week instead of hard off weeks: Some treat reduced frequency as the “cycle” when they dislike full multi-week offs. forum
  • Labs: Hormone-curious users often bloodwork near end of an on-block — total/free T, SHBG, LH/FSH, estradiol, plus CBC/CMP (AST/ALT, creatinine/eGFR) for liver/kidney talk. forum
  • Tongkat contrast: Tongkat is more often run continuous (Huberman/Gillett-adjacent: no inherent need to cycle Tongkat unless labs spike); Fadogia is more often cycled when both are stacked. forum
  • Not TRT logic: Continuous indefinite high-dose use is more often discouraged than praised in safety-aware threads; continuous-use anecdotes exist but are not treated as proof of safety. forum
  • Re-runs: Seasonal or multi-cycle restarts common; multi-year human safety data lacking. forum

Timing 7

  • Dosing is habit-based: Once-daily oral schedules dominate because of convenience and cycle culture, not measured t½. forum
  • Effect lag vs plasma: Users claim libido/drive lag days–weeks after start and fade after stop — unproven PK/PD; may reflect endocrine or placebo dynamics rather than herb clearance. anecdote
  • Endocrine readout lag: Bloodwork over multi-week blocks reflects slow HPG markers (T, free T, LH/FSH), not acute herb clearance. forum
  • AM vs PM: Morning with other T-stack items is default; evening is sometimes avoided if the user feels wired/insomnia (more often blamed on Tongkat stim lore when stacked). forum
  • With food: Largest meal or any meal used to blunt GI; no standardized food-effect study. forum
  • No metabolite panel in consumer labs: Users cannot order a “Fadogia level”; monitoring is indirect (hormones + organ panels + symptoms). forum
  • Human PK: No reliable published human half-life, Cmax, Tmax, AUC, or bioavailability for commercial Fadogia extracts. trial

More on what it is 9

  • Why people care: Fitness/podcast media (esp. Huberman Lab + clinician-guest episodes with Kyle Gillett) paired it with Tongkat Ali for libido and free-T talk, which drove marketplace search volume far ahead of human evidence. forum
  • Claimed mechanism (simplified): Vendor/community copy frames LH stimulation and/or greater Leydig-cell responsiveness → more testicular testosterone; saponins, alkaloids, anthraquinones, flavonoids, and glycosides are named as putative actives. Human mechanism data are essentially absent. forum
  • Not this: Not TRT, not a SERM/AI, not enclomiphene, not hCG, not a SARM; extract ratio, plant part, solvent, and assay quality vary widely by brand. forum
  • Brand signal: Research-forward brands such as Momentous publicly discontinued Fadogia products (reported 2024) citing insufficient progressing research/safety standards vs Tongkat — frequently cited in community risk talk as soft social proof, not a regulatory ban. forum
  • Media hierarchy note: When forced to pick, Huberman-adjacent commentary has often ranked Tongkat (and omega-3s) above Fadogia; Fadogia remains the more speculative LH-side add-on in the same stack culture. forum
  • What it is: West African shrub in the coffee family (Rubiaceae), native especially to Nigeria-region folklore as “black aphrodisiac” / Baakin gagai; modern products are usually oral aqueous or commercial stem extract in capsules or bulk powder. trial
  • Rodent T / sex data (Yakubu 2005 line): Aqueous stem extract raised serum testosterone and sexual-behavior metrics (higher mount/intromission frequency, longer ejaculatory latency, shorter latencies) in male albino rats at oral 18, 50, and 100 mg/kg over short multi-day windows. animal
  • Fold-T summaries (animal, not human): Examine-style and secondary writeups commonly summarize the same rat work as roughly ~2× T at 18 mg/kg, ~3× at 50 mg/kg, and ~6× at 100 mg/kg vs control — still short-window rodents, not a clinical protocol. animal
  • Evidence honesty: Nearly all T claims trace to short rodent work from a limited author group; no large human RCTs establish dose, efficacy, or safety for testosterone in people. Examine/WebMD-class summaries state benefits and a reliable human dose are not established. trial

Stacks 15

  • Tongkat + Fadogia (dominant duo): Podcast-era natural-T template; theory talk is complementary paths (Tongkat free-T / cortisol / aromatase-adjacent lore vs Fadogia LH lore) — not proven synergy. forum
  • Classic media stack numbers: Often discussed as ~400 mg Tongkat + ~600 mg Fadogia daily (or lower self-experiments like ~200 mg each) while on Fadogia cycles. forum
  • Tongkat continuous / Fadogia pulsed: Common practical pattern — keep Tongkat daily, cycle Fadogia on one of the on/off schedules above. forum
  • Minerals baseline: Zinc (~15 mg Huberman-adjacent talk; deficiency correction broader), magnesium, vitamin D, boron (~2–4 mg/day in same media stack) framed as free-T/SHBG “floor” — not proven Fadogia potentiators. forum
  • Boron + free-T lore: Gillett-adjacent SHBG/free-T talk often lands next to the same T-support stack; confounds dual-herb interpretation. forum
  • Ashwagandha: Stress + libido stacks; sleep/cortisol confounds large; KSM-66/Sensoril brand talk separate from Fadogia evidence. forum
  • Fenugreek / maca / tribulus: Older “T booster” megastacks still appear; attribution becomes impossible. forum
  • Cistanche: Emerging natural-T / “load” herb sometimes swapped or stacked in the same aisle as Fadogia. forum
  • Apigenin: Occasional aromatase-adjacent stack talk with natural T herbs (often from the same sleep-stack culture). forum
  • Creatine / training basics: Performance stacks add creatine and progressive resistance training; any recomp credit is usually lifestyle-first. forum
  • Pre-made blends: Marketplace combos (e.g. high-mg Fadogia + Tongkat softgels with stated extract ratios like 50:1 / 200:1–300:1 style labels) — ratios and true actives vary by vendor. forum
  • Lifestyle co-factors: Sleep, resistance training, alcohol cut, and lower body fat still credited when any labs move. forum
  • Avoid untestable megastacks: Safety-aware threads prefer fewer concurrent T-boosters so sides/labs can be attributed — especially given Fadogia’s animal organ flags. forum
  • vs TRT / enclomiphene / hCG: Serious hypogonadism discussions often treat medical options as a different category than Fadogia; some users run Fadogia as a “bridge” attempt before clinics, with mixed labs. forum
  • Huberman pause context: Secondary sources note he later paused Tongkat/Fadogia talk after TRT context — stack culture persists independent of that. forum

Storage notes 2

  • No reconstitution: Modern Fadogia agrestis products are discussed as oral plant extracts, not injectable peptides. Plant part, extraction ratio, assay quality, and label equivalence vary across products. forum
  • Storage (general talk only): Unopened research products are usually kept cool, dry, and away from light per the seller label. Anything after first use is product-specific — follow the label, not a universal forum SOP. forum

Watch for 17

  • Human-equivalent dose debates: Online toxicity threads sometimes map common ~600 mg capsule culture onto animal-effect bands via allometry — conversion methods vary and are not clinical proof of human harm at any specific capsule dose. forum
  • WebMD allergy warnings: Consumer monographs list rare severe allergy patterns (breathing issues, wheezing, racing heart, fever, swollen lymph nodes, rash) as stop-and-seek-care warnings without Fadogia-specific trial rates. forum
  • GI upset: Nausea, stomach discomfort, loose stools — minority reports, more when high dose or empty stomach. forum
  • Mood/skin anecdotes: Irritability, aggression, acne-like changes — confounded by stacks, training, and unproven causality. anecdote
  • Sleep / stim confounds: Insomnia or wired feel sometimes reported in dual stacks; Tongkat stim lore often shares blame. forum
  • Self-reported organ symptoms (anecdote only): Forum/YouTube comments include RUQ pain, “liver area” sensitivity, and claimed enzyme elevations while on ~600 mg/day — causality unproven, but these stories drive CMP monitoring culture. anecdote
  • Product quality / adulteration: Mislabeling, weak assays, unknown solvent residues, heavy metals, ratio inflation, and stem-only vs whole-plant uncertainty are marketplace risks. forum
  • Fertility / hormone-sensitive conditions: Caution talk for trying to conceive, known endocrine disease, prostate concerns, or concurrent hormone drugs — labs + clinician language is standard in careful threads. forum
  • Dose-ceiling culture: Pushing past ~600 mg/day (or stacking multiple high-ratio extracts) is often discouraged because animal harm signals scaled with dose and human ceiling is unknown. forum
  • Pregnancy / breastfeeding: Avoid-use language in consumer monographs due to lack of safety data. forum
  • Drug interaction data: Essentially none controlled; stacking with other hepatotoxic or hormone-active agents is discussed as unknown risk. forum
  • Not risk-free: Cycling, EOD dosing, and “I’m fine on CMP” anecdotes are not substitutes for missing long-term human toxicology. forum
  • Testis function flags (animal, Yakubu 2008): 28-day oral aqueous stem extract at 18, 50, and 100 mg/kg altered testicular function indices in rats (↑ testes–body weight ratio, ↑ testicular cholesterol/sialic acid/glycogen and some enzyme activities; ↓ alkaline phosphatase, protein, and other markers). Recoveries after washout were partial and better discussed mainly at the lowest (~18 mg/kg) arm; higher arms (50–100 mg/kg) carried stronger adverse-function language. animal
  • Histopathology talk (secondary summaries of same line): Some secondary writeups describe spermatic-cell / seminiferous-tubule injury that is milder/more recoverable at ~18 mg/kg and worse at higher arms — always animal tissue, not human biopsy series. animal
  • Liver/kidney cellular toxicity (Yakubu 2009 line): Mode-of-toxicity work reported biochemical organ-marker shifts (e.g. reduced tissue ALP/LDH/GGT with corresponding serum increases; elevated serum malondialdehyde) consistent with plasma-membrane disruption of hepatocytes/nephrons; no mortality and no clear organ weight swelling/atrophy in that design. animal
  • No solid human T RCTs: Claims rest on animal data + anecdotes; WebMD/Examine-style sources stress unknown human side-effect profile and lack of proven T benefit in people. trial
  • Momentous-class exit as social proof: Discontinuation by research-forward brands (Momentous, reported 2024, “insufficient research and safety concerns” framing) is used in forums as a soft safety/efficacy signal, not a regulatory ban. forum

Updated: 2026-08-12

Evidence mix Mostly community / anecdote tags Full: every bullet (trial + community). Use Scan for a faster bro-science read.
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