Perms are making a major comeback in 2025, blending classic curls with modern styling trends. But one question remains common for anyone considering this hair transformation: How long does a perm last, and what can you do to extend its life? This guide will not only answer that but also offer tried-and-true tips from a seasoned SEO content writer with 7 years of beauty industry experience. 

How Long Does a Perm Last? 

On average, a perm lasts between 3 to 6 months, depending on various factors like hair type, perm technique, and aftercare. The longevity of your curls also hinges on your hair’s health before the treatment and how you maintain it afterward. 

Factors That Affect the Lifespan of a Perm 

1. Hair Type and Texture 

Coarse, thick hair tends to hold a perm longer than fine or damaged hair. Natural texture plays a huge role in how well the curls "set" and remain bouncy over time. 

2. Perm Technique Used 

There are different types of perms — digital perms, cold wave perms, body wave perms, etc. Digital perms often last longer because they use heat to reshape the hair's structure, providing more defined and durable curls. 

3. Hair Length and Cut 

Shorter hair often maintains the perm structure longer since it has less weight pulling down on the curls. Layered cuts can also help curls stay lifted and more pronounced. 

4. Post-Perm Care Routine 

How you treat your hair in the days and weeks after getting a perm dramatically influences its longevity. Harsh shampoos, excessive heat styling, or skipping conditioner can break down the perm faster. 

Tips to Make Your Perm Last Longer 

1. Wait Before Washing 

Give your hair at least 48 to 72 hours before your first wash after getting a perm. This helps the curl pattern set firmly into the hair structure. 

2. Use Sulfate-Free Shampoos and Conditioners 

Sulfates strip your hair’s natural oils and can weaken the perm. Opt for gentle, moisturizing, sulfate-free products specifically formulated for curly or permed hair. 

3. Avoid Heat Styling 

Excessive use of flat irons, curling wands, or blow dryers can undo the perm. If you must use heat, always apply a heat protectant spray first. 

4. Deep Condition Weekly 

Hydration is key. Use a deep conditioning mask once a week to nourish your hair and prevent frizz, which keeps your curls looking fresh and healthy. 

5. Use a Silk Pillowcase 

Cotton pillowcases can cause friction, leading to frizz and curl disruption. A silk or satin pillowcase helps maintain your curl shape and reduce breakage. 

Conclusion 

A well-done perm can be a low-maintenance way to achieve beautiful, voluminous curls — but it’s not entirely hands-off. By understanding how long a perm typically lasts (3 to 6 months) and following a dedicated aftercare routine, you can enjoy defined curls for longer and get the most out of your salon investment.