Otter Hair Labs | Onion Juice as a Complementary Scalp Treatment

Onion juice fits into the category of complementary scalp care—supportive but not clinically established for most hair loss conditions. Its sulfur compounds and antioxidants may enhance local microcirculation and reduce mild irritation. At Otter Hair Labs, we recommend pairing such remedies with structured treatments that target the root causes of hair thinning. Individuals with autoimmune-related patches may explore onion juice cautiously, but those experiencing androgenetic loss should rely primarily on evidence-based solutions. A balanced approach offers better outcomes than depending solely on natural extracts, which often lack robust trials and long-term validation.