What size do you make your twists? If you make them medium sized, try making them smaller or try 3 strand twists as I hear they hold up better on finer hair. You can also use a stronger holding gel. Make sure you're twisting tightly (not too tight), since it will loosen a bit when you finish the twist.
Naptural 85 has tips on mini twists, you don't necessarily have to make them that small and you can apply the same tips to medium twists. She suggests starting at the root and moving further down the twist when that section feels taught. Hope that makes sense.
Last relaxer: December 20, 2008
4a/b, medium-fine, normal porosity & elasticity, thick