£29.95
Supplement Needs H2Out is a transparent, non‑proprietary water‑balance formula designed for short-term fluid manipulation – ideal for bodybuilding peak week, weight-class prep, or photo shoots.
Formulated by Dr. Dean St Mart PhD, it delivers 9 herbal diuretics plus electrolytes and 150 mg PurCaf caffeine, packaged into easy-to-use tablets.
Ingredients (per 5 capsules)
Astragalus root extract – 500mg
Dandelion root extract – 500mg
Goldenrod flower extract – 500mg
Horsetail extract – 500mg
Juniper berry extract – 500mg
Uva ursi leaf extract – 500mg
Bladderwrack extract – 50mg
Buchu extract – 100mg
Artichoke extract – 100mg
Calcium D‑Glucarate – 200mg
Vitamin B6 (P‑5‑P) – 200mg
PurCaf® caffeine – 150mg
Electrolytes: Potassium, Magnesium, Calcium
Other ingredients: Vegetable capsule, anti-caking agents
Nutritional Breakdown:
Herbal diuretic blend (functional doses)
Caffeine: 150mg
Electrolytes: Light balancing with potassium, magnesium, and calcium
Energy/macros: 0 kcal / 0g protein / 0g carbs / 0g fat / 0g salt
Is it suitable for vegans/vegetarians?
✅ Yes – uses vegan vegetable capsules and entirely plant-derived ingredients
Manufactured in a facility that processes nuts, milk, soy, and fish.
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H2Out can be highly effective when it comes to pulling off that last little bit of water prior to a photoshoot or a figure/physique competition.
Whenever I have used this product (either myself or with clients) we have always stacked it with an electrolyte to ensure optimal mineral balance.
Who it’s for:
This is for physique athletes, competitive lifters, and anyone preparing for a weigh-in or aesthetic event and need strategic fluid reduction – without resorting to drastic pharmaceutical methods.
What it does:
Combines nine herbal diuretics (dandelion, juniper, horsetail, etc.) with caffeine for mild water shedding. Electrolytes (K/Mg/Ca) help maintain mineral balance. Calcium D Glucarate adds liver support to aid detox pathways.
How I would use it:
Take 5 capsules per serving, up to three times daily, for no more than 5 days. Best paired with Electrolyte+ to avoid cramping or dizziness. Use during peak week or short-term weight prep – not as a daily product.
The Science
Study: The diuretic effect in human subjects of an extract of Taraxacum officinale (dandelion)
Planta Medica (2009)
https://pubmed.ncbi.nlm.nih.gov/19678785/
A clinical pilot showed that dandelion leaf extract significantly increased urine output and frequency in healthy volunteers—supporting its use as a natural diuretic.
Study: Calcium-D-glucarate inhibits beta glucuronidase and supports detoxification.
Altern Med Rev (2002)
https://pubmed.ncbi.nlm.nih.gov/12197785/
This review found that calcium-D-glucarate supplementation inhibits beta glucuronidase, enhancing liver detox and estrogen metabolism—a valuable addition during fluid manipulation protocols.
