Hair with a perm should typically be washed 48–72 hours after the treatment to allow the chemical bonds to fully set, then once or twice per week thereafter to maintain the curl while minimizing damage. Overwashing strips natural oils that protect permed hair, making it dry and frizzy, so spacing out wash days is essential for longevity.
When you do wash, use sulfate-free, moisturizing shampoo and conditioner formulated for chemically treated hair. Gentle handling matters: avoid rubbing or twisting wet permed hair, and consider co-washing (using conditioner instead of shampoo) between regular washes. Pat hair dry rather than rubbing, and apply leave-in conditioner to damp strands to lock in moisture.
The exact frequency depends on your hair type, scalp condition, and curl tightness. Fine or thin hair may need less frequent washing, while thicker hair or looser curls might tolerate weekly washing. If your scalp gets oily quickly, you might wash weekly but focus shampoo on the roots and let conditioner do most of the work on lengths and ends. Swimming, sweat, or product buildup may warrant more frequent washing, but use lukewarm water and hydrating products when you do.
Over time, as the perm relaxes—typically after 8–12 weeks—your natural wash routine can gradually return to normal. Regular deep conditioning treatments every 1–2 weeks help keep permed hair healthy and bouncy throughout its lifespan.