A solution derived from fermented apples, often diluted with water, is sometimes used in hair care routines to potentially influence the condition and appearance of tresses that have undergone a dyeing or tinting process. The practice involves applying the diluted solution to the hair and scalp, followed by rinsing.
The perceived value in utilizing this treatment lies in its potential to restore the pH balance of the scalp and hair shaft, which may be disrupted by the alkaline nature of many hair dyes. Furthermore, proponents suggest it can help seal the hair cuticle, resulting in enhanced shine and reduced frizz. Historically, acidic rinses have been employed in hair care to counteract residue buildup and promote smoothness.