Conditioner (Hair Care)

Conditioner works electrically. Hair damaged by sun, bleach or heat carries a negative charge, and conditioning agents carry a positive one. They stick where damage is worst and leave healthy areas alone. What they do there is flatten the cuticle, the layer of overlapping scales on the outside of every strand. Flat scales reflect light, which you see as shine, and slide past each other, which is why a comb stops snagging.

Mid lengths to ends is the target, and keeping it off the scalp is not fussiness. Roots already carry fresh oil, and extra weight there is what makes hair go limp within hours. Two to three minutes of contact does the job for a rinse out formula. Longer adds very little, since these products work on the surface and hit a limit fast. Finishing with the coolest water you can stand helps the scales settle closed.

Hair masks run the same chemistry at higher concentration and longer contact, aimed at weekly use rather than every wash. Lighter still is the leave in, which never gets rinsed and keeps working while hair dries. Hair oil seals the outside and cannot detangle anything. Sequence matters if you use all three: rinse out first, leave in on damp hair second, oil last and on the ends only.

Everyone who shampoos should follow with something, and weight is the real decision. Fine hair wants a thin formula that rinses clean or it looks dirty by afternoon. Thick, coarse, curly and color treated hair takes rich cream formulas daily without complaint. Long hair gains most, because its ends are several years old. Keep it off the roots entirely if your scalp runs oily, and leave protein heavy formulas alone if your hair already snaps rather than stretches.

Slip is the test: fingers should travel through wet hair with almost no resistance while the product is on. If they catch, the formula is too light for your hair rather than the amount too small. Detangle in the shower with conditioner still in, using a wide tooth comb from the ends upward, since wet hair breaks under a fraction of the force dry hair survives. Squeeze water out with a cotton shirt instead of rubbing with a towel, because friction on wet cuticles is where most frizz begins.