Skin aging: A natural process, but factors like oxidative stress, sun exposure, air pollution, and poor diet can accelerate it.
As a result, the skin loses elasticity, wrinkles and dark spots appear, and dryness and irritation develop.
New studies: Suggest that dietary supplements with antioxidants, such as astaxanthin, may slow the aging process and improve skin health.
Astaxanthin: A particularly powerful antioxidant. In laboratory tests (in vitro), its potency depends on the type of test: in neutralizing singlet oxygen, it is measured as about 6,000 times stronger than vitamin C and about 550 times stronger than vitamin E, while in scavenging free radicals, the potency is much lower, about 65 times that of vitamin C and about 14 times that of vitamin E.
It is important to remember that these are laboratory measurements and do not necessarily reflect the effect in the body.
Astaxanthin is naturally found in algae, salmon, crustaceans, and flamingos.
The current study: Examined the effects of consuming astaxanthin for 4 weeks on the morphology (structure) of residual skin surface components (RSSCs).
RSSCs are dead cells that accumulate on the skin surface and can provide information about skin health.
The study included 31 subjects: Over the age of 40 who took 4 mg of astaxanthin per day, and RSSC samples and blood samples were taken from them at the beginning and end of the study.
The results:
- Significant decrease in malondialdehyde (MDA) levels
in plasma, indicating a reduction in oxidative stress.
MDA is a toxic byproduct of metabolism, and high levels are associated with aging and various diseases. - Significant decrease in corneocyte (skin cell) degradation in RSSCs.
Corneocytes are the outermost cells of the epidermis, responsible for the skin's external barrier.
Their increased degradation causes dryness, flaking, and irritation. - Significant decrease in microbial presence in RSSCs.
Excessive bacterial growth on the skin surface is associated with inflammation, acne, and other skin issues. - Significant increase in the size of lipid droplets in RSSCs.
These lipid droplets contribute to skin smoothness and elasticity.
These effects were stronger: Among obese subjects (BMI > 30).
This may be because obese individuals tend to suffer more from oxidative stress and inflammation, and astaxanthin consumption may help neutralize free radicals and improve skin health.
Conclusions:
- Consuming astaxanthin for 4 weeks reduces oxidative stress and leads to facial skin rejuvenation.
- These effects are more pronounced in obese subjects.
- This study suggests that astaxanthin may be an effective dietary supplement for slowing skin aging and improving its health.
Important to note:
- This is a preliminary study, and further research is needed to confirm the findings.
- It is recommended to consult a doctor before taking dietary supplements, especially when taking medications concurrently.
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