@INT So thats my thought process:
rosemary oil was significantly more effective than 2% minoxidil (3-4x as effective).
In a study comparing microneedling + 5% minoxidil vs just 5% minoxidil, the microneedling group was significantly more effective than the minoxidil group (mean hair count was 4x greater in the microneedling group).
If rosemary oil promotes hair growth much better than 2% minoxidil does, and microneedling improves the hair growth by a superior amount, then i dont think im too far off when i say this combination is more effective than 5% minoxidil. In fact, im confident thats precisely the case.
Now add on that, 5% minoxidil is only around 40% stronger than 2% minoxidil.
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That is a very huge leap. Nothing more but an assumption.
First of all, in my almost decade on here I have NEVER seen anyone get significant results with rosemary oil backed up with pictures. Sure, that study did show it but over the year we have had so many tiny studies that showed results, people start trying it and somehow no one gets results. Small studies that never got replicated are not very high on the pyramid of evidence.
Also just because microneelding improves the efficacy of minoxidil does not mean it has the same effect for rosemary oil. Both have a different method of action. The method of actions of minoxidil and dermarolling obviously supplement each other, but there is no evidence at all to think that this will be the same for rosemary oil and dermarolling.