I have fine 4b/4c hair...what can I use to help thicken?
Once moisturized my hair is soft but it's thin..what products can I use to thicken?
Thin hair and fine hair are not the same. Fine hair refers to the width 9f your individual hair strands (fine, normal, course). It sounds like you have fine hair and low density hair. Low density just means you have less hair follicles than normal. There is no way to add hair follicles because we are born with it and it stays that way all our life. You can try products that will give your hair volume, and make your hair look fuller.
There is no way to increase the diameter of your strands. Your hair's width is determined by genetics. All you can do is manipulate your hair to look denser.