American Metabolix Lean Muscle For Her is a non-hormonal lean muscle and metabolic support formula built specifically for women — three targeted blends working together to support lean muscle development, fat-derived energy metabolism, and metabolic signaling, without any stimulants, androgens, or hormonal compounds. The Lean Muscle Blend combines Smilax Sieboldii Extract (200:1) — the same plant source behind the natural steroidal compound Laxogenin — with Panax Ginseng and Gamma Butyrobetaine (a direct carnitine precursor). The Carnitine Blend delivers a substantial 1,000mg combined dose of L-Carnitine Tartrate and Acetyl-L-Carnitine HCl to support fatty acid transport into the mitochondria for energy production. The Cyclic AMP Blend rounds out the formula with 500mg Berberine HCl, Coleus Forskholii (standardized to 10% forskolin), and Bioperine® for absorption, targeting the cAMP signaling pathway relevant to metabolic rate and nutrient partitioning. Take up to 8 weeks before discontinuing for a minimum of 4 weeks. Take only on workout days.†
Supplement Facts — American Metabolix Lean Muscle For Her (Per 4 Capsules / 30 Servings)
Lean Muscle Blend
Smilax Sieboldii Extract 200:1 — 225mg
Panax Ginseng Extract 4:1 — 100mg
Gamma Butyrobetaine — 30mg
Carnitine Blend
Cyclic AMP Blend
Berberine HCl — 500mg
Coleus Forskholii Extract (root, std. 10% forskolin) — 30mg
Bioperine® Black Pepper Extract (fruit, std. 95% Piperine) — 3mg
Other Ingredients: Vegan Capsule (Hypromellose), Rice Flour, Magnesium Stearate, Silicon Dioxide
Produced in a facility that processes wheat, soy, eggs, peanuts, tree nuts, shellfish, sesame, and milk
120 capsules — 30 servings at 4 capsules daily
Take up to 8 weeks before discontinuing for a minimum of 4 weeks
Take only on workout days
California Prop 65 Warning — lead exposure
Smilax Sieboldii — The Same Plant Source Behind Laxogenin
Smilax Sieboldii is the Asian plant source from which Laxogenin (5α-Hydroxy-Laxogenin) — a natural steroidal sapogenin belonging to the brassinosteroid class — is derived. Laxogenin-class compounds interact with androgen receptors to stimulate hypertrophy and tissue repair, elevating muscle protein synthesis while decreasing muscle protein breakdown, without affecting the body's own testosterone production. The label lists this as a 200:1 extract rather than a specific standardized Laxogenin percentage, so the exact active compound concentration isn't disclosed the way some dedicated Laxogenin products state it — but the underlying botanical source and general mechanism are the same non-hormonal, anabolic/anti-catabolic pathway.†
Gamma Butyrobetaine — The Carnitine Precursor
Gamma Butyrobetaine (GBB) is a direct precursor to L-Carnitine — the body converts GBB into carnitine via the enzyme gamma-butyrobetaine dioxygenase. Because the body maintains an equilibrium between carnitine and GBB (excess carnitine can convert back into GBB over time), supplementing GBB directly alongside dedicated carnitine forms is a strategy intended to help shift and sustain that equilibrium toward higher overall intracellular carnitine availability, rather than relying on carnitine supplementation alone.†
1,000mg Combined Carnitine — L-Carnitine Tartrate and Acetyl-L-Carnitine
The Carnitine Blend pairs 700mg of L-Carnitine Tartrate with 300mg of Acetyl-L-Carnitine HCl (ALCAR) — two carnitine forms with slightly different properties. L-Carnitine Tartrate is well-established for its role in transporting long-chain fatty acids into the mitochondria for beta-oxidation, the metabolic step that converts stored fat into usable cellular energy. ALCAR carries an acetyl group that allows it to cross the blood-brain barrier more readily, contributing a cognitive and neuroprotective dimension alongside the same fundamental fat-transport mechanism.†
Berberine, Forskolin, and Bioperine — The Cyclic AMP Blend
Berberine HCl at 500mg is a well-researched compound that activates AMPK (AMP-activated protein kinase), a cellular energy-sensing pathway associated with improved glucose disposal and insulin sensitivity — the same mechanism targeted by the pharmaceutical diabetes medication metformin. Coleus Forskholii, standardized to 10% forskolin, activates adenylate cyclase, which increases intracellular cyclic AMP (cAMP) — a signaling molecule involved in fat metabolism and thermogenesis. Bioperine® (standardized black pepper extract) rounds out the blend as an absorption enhancer, helping ensure the other actives in the formula are more completely utilized.†
Why This Formula Is Positioned Specifically for Women
Unlike androgenic prohormone-based lean muscle products, which typically carry "not for women" warnings due to virilization risk, Lean Muscle For Her is built entirely around non-hormonal mechanisms — plant-based anabolic signaling (Smilax Sieboldii), carnitine-based energy metabolism, and cAMP/AMPK-pathway metabolic support. None of the ingredients in this formula work through androgen receptor activation or introduce exogenous hormones, which is what allows this product to be marketed specifically for women without the same category of safety caveats that apply to androgenic prohormone products.†
Frequently Asked Questions
Do I need to take this every day, or only on training days?
Only on workout days, per the label's suggested use. This is different from daily-use supplements like a multivitamin or fish oil — take this specifically on days you train.†
Why does the label say to cycle on and off?
Take up to 8 weeks before discontinuing for a minimum of 4 weeks — this cycling guidance is standard practice for concentrated botanical and metabolic-support formulas used consistently over extended periods, helping maintain the formula's effectiveness over time.†
Is this product hormonal or does it require PCT?
No — this is a non-hormonal formula built around plant-based anabolic signaling, carnitine, and metabolic pathway support. It does not introduce exogenous hormones or work through androgen receptor activation, so no PCT is required.†
Is Lean Muscle For Her appropriate for tested athletes?
Based on the disclosed formula — Smilax Sieboldii Extract, Panax Ginseng, Gamma Butyrobetaine, L-Carnitine Tartrate, Acetyl-L-Carnitine, Berberine HCl, Coleus Forskholii, and Bioperine — this product does not appear to contain compounds prohibited by WADA or NCAA. Tested athletes should review the complete label and verify with their governing body as standard practice.†
How to Take American Metabolix Lean Muscle For Her
Take 4 capsules on workout days. Take up to 8 weeks before discontinuing for a minimum of 4 weeks. Do not use if pregnant or nursing. Not intended for use by those with a medical condition and only intended to be consumed by healthy adults 18 years of age or older. Before using this product, consult with your physician if you are using any prescription or over-the-counter medication, or if you have any pre-existing medical condition including but not limited to high or low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney, or thyroid disease, seizure disorder, psychiatric disease, difficulty urinating due to prostate enlargement, or if you are taking a MAOI (Monoamine Oxidase Inhibitor) or any other medication. Discontinue use and consult your health care professional if you experience any adverse reaction to this product. Do not use if safety seal is broken or missing. California Prop 65 Warning: consuming this product can expose you to lead, known to the State of California to cause cancer and birth defects or other reproductive harm.
Why Buy at Get Yok'd
Real-time inventory across all five Southern California stores
Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
Authorized American Metabolix retailer
Staff who can help you incorporate Lean Muscle For Her into a complete training and metabolic support protocol
One of the best loyalty programs in the supplement industry — earn rewards on every purchase
Who Should Exercise Caution with Lean Muscle For Her
Do not use if pregnant or nursing
Not intended for use by those with a medical condition; only for healthy adults 18 years of age or older
Consult a physician before use if taking any prescription or over-the-counter medication, or if you have high or low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney, or thyroid disease, seizure disorder, or psychiatric disease
Not for individuals with difficulty urinating due to prostate enlargement
Not for individuals taking a MAOI (Monoamine Oxidase Inhibitor) or any other medication without physician clearance
Discontinue use and consult a healthcare professional if you experience any adverse reaction
Do not use if safety seal is broken or missing
California Prop 65 Warning — lead exposure
Keep out of reach of children.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
