This #Minidiva hair straightener+ curler, 2-in-1, hot comb/iron is pretty good! I have 2C curly hair+ it definitely straightened my hair with more volume and a little bit of frizz (not bad, fixed w/a litte hair oil). Compared to using a ceramic flat iron, which presses your hairs in between 2 plates and squishes it, I definitely think this is a healthier heat option for hair in general!
If you're looking for Sleek, straight-straight hair and you have VERY curly hair or VERY frizzy hair, unfortunately I don't think this is the product for you, BUT if you have like wavy hair, w/ not too much frizz, then this will work for you I believe, as that's what I have!!
I recommend this product for 2C-3A curly hair, in my opinion, that's what it'll work best with! (BTW, I am a licensed cosmetologist)
Product link:
https://www.amazon.com/dp/B083XLT1HC