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Pairs well with
Ultra Mask is a carbohydrate-based liquid cleansing formula designed to temporarily flush toxins from your system. Shake it, drink it, refill with water, urinate a few times — and you're clear for up to four hours. Backed by Ultra Klean's 500% money-back guarantee, it's one of the most widely used detox drinks in the Australian hydroponics market. Three flavours, same trusted formula, 739ml bottle.
Fast-Acting Formula
Active cleansing window starts within one hour of consumption. Follow the protocol and you're clean for a four-hour window.
Vitamin-Fortified
Loaded with B vitamins — Niacin, B6, B1, B2, B12 — plus Creatine and Uva Ursi extract to support a natural-looking result.
Three Flavours
Cherry Red, Mandarin, and Wild Berry Blast. Same formula across all three — pick the one that won't make the process unpleasant.
500% Money-Back
Ultra Klean back this product with a 500% MSRP money-back guarantee if you're not satisfied. That's not nothing.
For best results, avoid all toxins and unnecessary medications for 24–72 hours before use. Many over-the-counter medications can trigger a false positive. Stay well hydrated in the days prior — but don't overdo it on the day. Excessive water intake can dilute your sample to a flagged level. If you've had high daily exposure over three or more months, pair this with Power Flush capsules or herbal tea one hour before cracking the Ultra Mask. Avoid alcohol within 24 hours — dehydration will work against you.
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Shake and drink the full bottle
Don't sip it — drink the entire 739ml of Ultra Mask in one session.
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Wait 15 minutes, then refill with water and drink again
Refill the empty bottle with clean water and drink that too. This activates the cleansing cycle.
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Urinate at least 2–3 times over the next 45 minutes
This is the flush phase. Don't hold it. Each time you urinate, you're cycling out the toxins.
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You're clear for up to four hours
Your cleanse window opens 1–5 hours after ingestion and lasts up to four hours. Plan accordingly.
Harvest Products
Everything you need at the end of the grow cycle — from wash and trim to storage and beyond.
Hydroponic Nutrients
Full nutrient ranges from the brands serious growers trust. Build your feed program from the ground up.
Pest Management
Keep your grow clean from start to finish. Prevention is always cheaper than treatment.
Proprietary blend of Deionized water, Dextrose, Gum acacia, Citric acid, Guar gum, Creatine monohydrate, Niacinamide, Pyridoxine HCl, Aspartame, Thiamine HCl, Riboflavin-5-Phosphate, Uva ursi extract, Cyanocobalamin. Preserved with Sodium Benzoate and Potassium Sorbate. Contains FD&C colour, Natural & Artificial Flavour.
Does Ultra Mask work for heavy or daily users?
Yes, but with extra preparation. Ultra Klean recommend pairing it with Power Flush capsules or herbal tea if you've had consistent daily exposure over three months or more. Finish the Power Flush at least one hour before drinking Ultra Mask for best results.
Can I use Ultra Mask more than once?
No. Each bottle is a single-use formula. Do not attempt to split one bottle across multiple uses — the protocol requires the full volume to work correctly.
How long does the cleanse window last?
Up to four hours, starting roughly one hour after you finish the protocol. The formula is designed to be active 1–5 hours post-ingestion. Plan your timing precisely — being early is better than being late.
Will medications cause a false positive?
Yes, potentially. Many over-the-counter and prescription medications can produce a false positive result. Avoid all unnecessary medications for 24–72 hours before use where possible, and consult your prescribing doctor if stopping a medication is not safe.
Does the flavour affect how the formula works?
No. Cherry Red, Mandarin, and Wild Berry Blast are all the same formula. The flavour variants are purely cosmetic — choose based on what you can stomach drinking 739ml of in one go.
Is this product backed by a guarantee?
Yes. Ultra Klean offers a 500% MSRP money-back guarantee on Ultra Mask. Claims must be lodged directly with Ultra Klean at ultraklean.com. The Grow Guys facilitates the sale — the guarantee is fulfilled by the manufacturer.
Ready to Grab a Bottle?
Three flavours in stock. Ships from Invermay, Tasmania. Same-day dispatch on orders placed before 1pm.