What happens if you don't use a neutralizer in a perm?

If you don't use a neutralizer in a perm, the chemical bonds in the hair that were altered during the perming process may not fully stabilize. This can lead to hair that is frizzy, uneven, or reverts back to its original state. Additionally, skipping the neutralizer can cause damage to the hair, making it more prone to breakage and dryness. Ultimately, the desired curl or wave may not hold, resulting in an unsatisfactory outcome.