Omega-3 Fatty Acid ETA Shown to Reduce Pigment Production in Skin Cells
This laboratory study looked at eicosa-11Z,14Z,17Z-trienoic acid (ETA), an omega-3 fatty acid structurally related to alpha-linolenic acid, and its effect on pigment-producing cells. Researchers used mouse melanoma cells stimulated with a hormone (α-MSH) that triggers melanin production.
ETA did not directly block the tyrosinase enzyme when tested outside of cells, and it did not appear to harm the cells at the doses tested. However, when added to living cells under pigment-stimulating conditions, ETA reduced melanin buildup and lowered the activity and gene expression of tyrosinase and related proteins (TYRP1, TYRP2).
The researchers found that ETA reduced activation of key signaling molecules (CREB, ERK, and MITF) involved in turning on pigment-related genes, and also reduced the amount of MITF protein appearing in the cell nucleus. This suggests ETA works by dialing down the signaling pathway that controls pigment production, rather than by directly blocking the tyrosinase enzyme itself.
What this means for you
This early-stage cell study suggests that this particular omega-3 fatty acid may influence the biological pathway behind skin pigmentation, but it was conducted in mouse melanoma cells, not in humans, so it does not tell us how oral omega-3 intake might affect skin tone or pigmentation in people. It’s an interesting mechanistic clue that may guide future research, not a basis for any skin care or pigmentation claims.
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Journal of microbiology and biotechnology · 2026-10-08 · DOI: 10.4014/jmb.2604.04071
Read the original source ↗This summary is for educational purposes only and is not medical advice. Always talk to your healthcare provider before making changes to your supplement routine.