When applying a relaxer, where should you start?

Starting the application of a relaxer 1/4 inch from the scalp is the appropriate approach because the scalp is typically warmer than the rest of the hair. This increased heat can accelerate the chemical process of relaxing the hair, leading to potential over-processing at the roots. By beginning the application slightly away from the scalp, you ensure that the mid-lengths and ends of the hair, which are usually more porous and prone to damage, receive the relaxer first. This method allows for a more even and controlled application, minimizing the risk of excessive damage to the hair near the roots while still accommodating for the desired straightening effect.

Other options suggest starting at the scalp or the ends, which could lead to issues such as uneven texture or damage due to over-processing in one area. Starting midway down also does not effectively account for the heat difference, leading to similar risks. Thus, beginning 1/4 inch from the scalp is the most strategic and safe method for applying a relaxer.