Why are we using 1.5mm for microneedling? Evidence says we don't need to.

Microneedling 5/9/2026

The user shared their positive hair regrowth experience using saw palmetto tablets, 5% minoxidil spray, and a Derma Pen. The conversation debates the effectiveness of saw palmetto versus finasteride, with some advocating for natural treatments and others emphasizing the proven results of finasteride and minoxidil, often in combination with microneedling.

A user shared a 14-month hair loss treatment update using dutasteride, minoxidil foam, a 1.5mm derma roller, and Nizoral, with noticeable hair regrowth and no side effects. The discussion highlights the effectiveness of microneedling in combination with topical treatments, with many users agreeing it significantly enhances results.

Microneedling with minoxidil significantly boosts hair growth, even for non-responders to minoxidil alone. The routine includes a 1.5mm dermaroller weekly and minoxidil twice daily, with some users adding finasteride and tretinoin.

A user's hair loss treatment regimen, which includes minoxidil, ketoconazole shampoo and microneedling; some participants questioned the results due to previous posts about hair transplants, but others agreed that quick results are possible with certain treatments.

The conversation is about microneedling for hair loss. The conclusion is that there are differing opinions on the depth and frequency of microneedling, with some studies suggesting positive results with 1.5mm depth once a week, while others prefer lower depths and less frequent sessions.