Which dermaroller to buy

Hey,

I’ve started using Minoxidil few days ago and I think it’s about time that I combine it with a derma roller.

Found a guide on tressless reddit and it says :

Derma roller - A decent quality 1-1.5mm roller with 192 needles will cost about $30. Make sure the needles aren’t just metal plates with blade like “needles” as these can tear your skin up. Dont get a 540 needle roller either as there are too many needles and the load is too spread, so they don’t penetrate enough.

What do they mean by “needles aren’t just metal plates with blade” ?
I live in France, could you please suggest me any dermaroller from a local shop in France or from amazon.fr ?

I stumbled upon these :

Are they any good ?

1 Like

# Derma Roller pour cheveux et peau - Microneaiguilles en titane de 0,30 mm - pour le visage et le cuir chevelu - 192 aiguilles individuelles avec étui de rangement gratuit pour homme et femme

This one is pretty good but i would be careful using rollers. dermastamps are better!