How Long a Perm Will Last

Perming hair in a hair salon
Photo: Metamorworks/Shutterstock
Q: I am getting a body wave next week, and I was wondering: on average, how long will the perm last if I follow a standard hair care routine?
 
A: On average, you can expect a body wave to look its best for 8 to 12 weeks. While you might start noticing your natural, straight roots growing in around week 6 to 8, the wave itself will gradually relax and soften over time rather than disappearing all at once.
 
With a body wave, the hair is wrapped on much larger rods. Instead of creating tight, defined curls, this technique adds soft texture, movement, and natural-looking volume. Because these waves are so loose, they naturally relax a bit faster than a traditional tight perm.
 
It is a common myth that body waves are gentler than traditional perms. Scientifically, they use the exact same chemical solutions to break and rebuild your hair's bonds; they simply use larger rods. Because of this, a body wave carries the same dryness risks as any other perm.
 

What Determines How Long It Lasts?

How long your body wave holds depends heavily on a few key factors:
 
• Hair Texture: Fine hair takes a body wave easily but tends to relax much faster. Coarse or resistant hair is stronger and may require a more intense chemical formula to lock the wave in place.
 
• Hair History: If your hair has been heavily highlighted, bleached, or chemically straightened, it is highly porous. Highly porous hair behaves unpredictably and may struggle to hold the wave structure.
 

How to Extend the Life of Your Wave:

• Wait 48 Hours to Wash: Avoid washing, soaking, or heavily sweating in your hair for the first 48 hours after your perm service. This gives the newly reformed chemical bonds ample time to fully lock into their new wavy shape.
 
• Hydrate Constantly: Perming solutions raise the hair's cuticle layer to penetrate the shaft, which makes the hair lose moisture more easily. Use a rich, moisturizing conditioner after every shampoo, and commit to a deep conditioning mask once a week.
 
• Styling & Heat: Minimize heat styling whenever possible to prevent the hair from drying out and frizzing. If you must use a blow dryer or curling iron, always apply a high-quality heat protectant first.
 
As your hair grows, your roots will grow in straight while the mid-lengths and ends retain their body. Most people choose to get a touch-up or refresh their body wave every 3 months, while others simply enjoy the transition as it gracefully grows out into a soft, natural blend.
 
©Hairfinder.com
 
See also:
 
Perms
 
Are permanent curls right for you?
 
Is there such a thing as a semi-permanent perm?