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Sublingual B12 has better absorption than oral tablets, especially if you have any GI problems

Niacinamide (vitamin B3, technically not peptide but frequently combined in peptide formulations ) addresses pigmented dark circles through multiple mechanisms including inhibiting melanosome transfer from melanocytes to keratinocytes reducing visible pigmentation, anti-inflammatory effects decreasing post-inflammatory hyperpigmentation from rubbing or allergies, and barrier strengthening improving overall skin health and resilience

Results Within five months, Maggie experienced a 90% reduction in pain, a complete resolution of fungal colonization, and regained approximately 90% of her energy

Nanobiotechnology 19 (1), 20