Garlic and onions
[DOI] [PubMed] [Google Scholar] 113.Guan XM, Chen H, Dobbelaar PH, et al
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The effect of a regular intake of ascorbic acid has been widely described in literature, showing that its consumption during pregnancy could stimulate the human placental/trophoblastic steroidogenesis that physiologically supports gestation (51)
The glutathione group showed a measurable reduction in melanin index, particularly in sun-exposed areas like the face and wrists, according to the study published in the Journal of Dermatological Treatment

Melanin biology = weeks to months Dose well below studied ranges (e.g., under 250mg) minimal supporting research at very low doses No ALA or NAC in formula these co-factors are commonly included to support glutathione regeneration, though not strictly mandatory No FSSAI number on label illegal in India Prices below 300/month raw material cost makes this difficult at consistent quality Clinical Research: What Studies Actually Show Rather than relying on marketing claims, here's a brief summary of the published research most relevant to oral glutathione and skin brightening: Oral glutathione and skin pigmentation Arjinpathana & Asawanonda (2012), Journal of Dermatological Treatment , found that subjects taking 500mg/day oral glutathione for 4 weeks showed a significant reduction in melanin index compared to placebo in a double-blind randomised trial