Carbonic acid indirectly helps hair growth primarily by deterring hair loss through blocking dihydrotestosterone (DHT).
Here's a more detailed breakdown:
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DHT Blockage: The primary mechanism is related to DHT, a hormone implicated in hair loss. By blocking DHT, carbonic acid can help prevent hair follicles from shrinking and eventually ceasing hair production.
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Ketoconazole Connection: Many carbonic acid shampoos also contain ketoconazole. While known for its antifungal properties, ketoconazole has also been shown to disrupt DHT pathways, preventing DHT from binding to hair follicles. This dual-action contributes to a reduction in hair loss, which indirectly promotes a more favorable environment for hair growth.
In summary, while carbonic acid itself might not directly stimulate hair growth, its DHT-blocking properties (often enhanced by the presence of ketoconazole in carbonic acid shampoos) help prevent hair loss, creating an environment where existing hair follicles can thrive and new hair growth is supported.
