From the Research
There is currently no conclusive evidence to suggest that astaxanthin supplementation can slow down hair graying, and more research is needed to fully understand its potential effects on this process. While astaxanthin is a powerful antioxidant with potential benefits for overall health, as discussed in a 2023 review on its health benefits against age-related diseases 1, research specifically linking it to prevention or reversal of gray hair is insufficient. Typical astaxanthin supplements range from 4-12 mg daily, with some users taking it for its other potential benefits like skin health and anti-inflammatory properties, as highlighted in a 2021 review of its therapeutic uses 2.
Hair graying primarily occurs due to a gradual decrease in melanin production in hair follicles, which is largely determined by genetics, age, and oxidative stress, as explained in a 2024 study on human hair graying revisited 3. In theory, astaxanthin's antioxidant properties might help combat oxidative stress that contributes to premature graying, but this mechanism remains theoretical rather than proven. A 2019 study discussed astaxanthin's potential as a mitochondrial-targeted antioxidant treatment in diseases and with aging 4, but its specific application to hair graying is not well-studied.
If you're concerned about premature graying, more established approaches include:
- Ensuring adequate nutrition (particularly B vitamins, copper, iron, and zinc)
- Managing stress
- Avoiding smoking
- Consulting with a dermatologist who might recommend more evidence-based treatments
While astaxanthin supplementation is generally considered safe for most people, it's always advisable to consult with a healthcare provider before starting any new supplement regimen. A 2022 case study on the reversal of premature hair graying using a topical formulation containing α-melanocyte-stimulating hormone agonist 5 shows promise for targeted treatments but does not directly relate to astaxanthin supplementation.