This ingrown hair serum works effectively but u have gotta persist! I am a bit of a lazybones and being a parent i dress and shower in minimal time! Gone are the days of a luxurious timeout!ive had to give up on waxing my thighs because the ingrown hairs bumps and scars I've had have not made it worth the trouble! This works well on ingrown hairs that are like bumps and the hair is almost there just struggling to break thd surface! But if u are like me and the hair is visible through the skin but under with no evidence of breaking the surface then even the most effective serum doesn't work! On the hairs that i have that are bumpy this works effectively within a week