This is a topical scalp oil, not an oral supplement — so it works differently than the capsules and powders you'd typically compare it to. The star ingredient is **rosemary oil**, which has modest clinical backing for hair growth: one RCT found topical rosemary oil comparable to 2% minoxidil over six months, though evidence is still limited to a handful of small trials. The blend also includes **castor oil** and **jojoba oil** as carrier oils that help condition the scalp and smooth the hair shaft.

**Peppermint oil** adds a tingling sensation and has one animal study suggesting it may increase dermal thickness and follicle count, but there are no human trials confirming hair growth benefits. **Biotin** and **vitamin D** appear in the ingredient list, but as trace additions in a topical oil with no listed concentrations — their contribution here is negligible compared to oral dosing.

Since this is a leave-in topical product, you won't get the kind of measurable clinical dosing you'd find in an oral hair supplement. If your goal is hair growth support, the rosemary oil base gives this product a reasonable rationale, but set expectations accordingly — the evidence is early-stage and the format limits what the other listed nutrients can deliver.