1. Permanent Loc extensions. Yes, it is healthy for your hair if done correctly.
2. Loc ratio is significant.
3. Loc textures are different,4a,4b, and 4c. Get the different thicknesses and choose the best thickness for you.
4. Loc Methods- Warp methods and crochet methods. Please select the crochet methods.
5. Determine size-Your hairline breakage that can happen if not done correctly.