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Frequently Asked Questions

The problem was never the tea tree, it was what it came mixed with.

Malassezia (the yeast behind most flaking and itch) feeds on oil. Most tea tree products (and every DIY recipe) blend the oil into coconut, argan, or jojoba carriers which quietly feed the exact yeast you're trying to clear.

Rooten does the opposite: clinical 5% tea tree in a yeast-starving base of squalane and MCT, lipids the yeast can't feed on. You're not adding fuel to the fire this time. You're starving it.

Fair question, the category's full of under-dosed products that do nothing.

5% isn't a marketing number; it's the concentration used in the clinical trial that cut dandruff severity 41% versus 11% for placebo. Below that, tea tree underperforms.

We dose to the proven number and print it on the bottle — no vague "infused with tea tree," an exact clinical 5%.

No tingle, no menthol, no burn by design. A lot of scalp products use menthol to create a "tingle" people mistake for working; on raw or reactive skin, that's just irritation.

Rooten is tingle-free and sulfate-free, formulated to calm the barrier while it clears the flaking, NOT strip it. If your scalp still isn't calmer, the 90-day guarantee has you covered.

No subscription, no auto-ship, no hidden anything — one-time purchase, cancel nothing because there's nothing to cancel.

Use Rooten for two full scalp cycles. If your scalp isn't visibly calmer and your flaking visibly reduced within 90 days, email us for a full refund and keep the bottles. Scalp turnover varies between 1-2 months, so we give you three. Just as long as the biology actually needs.