Spermidine is a naturally occurring substance found in all cells of the body. It plays a key role in cell regeneration and the process known as autophagy — the body’s way of “self-cleaning” at the cellular level.

In relation to hair health, spermidine is considered a promising active ingredient, as it can prolong the lifespan of hair follicles and promote hair growth. Studies suggest that spermidine supports growth during the anagen phase (the active growth phase) of the hair cycle, helping hair to grow back stronger and healthier. Targeted supplementation with spermidine can be particularly beneficial in cases of age-related hair loss or stress-induced weakening of the hair structure. Consistent, long-term use is important, as positive effects typically become visible only after several weeks.