Dr. William Sears, MD

Dr. William Sears, MD


June 2024

Naturally, we want our skin to look good and feel good at all ages. Exposure to sun can speed the process of aging the skin. Always wear a good reef safe sunscreen when in the sun. 

My mantra for skin health is:

Nourish skin on the outside and inside.

Sun helps the skin produce vitamin D, the “sunshine vitamin,”  which nearly every organ of your body needs.  Sadly, it’s now one of the most common nutrient deficiencies at all ages.  As we age, our skin weakens its ability to make vitamin D from sunshine.  Incidentally, “vitamin-D” has been upgraded to the status of “hormone-D.”

Dr. Bill notes: the old recommended level of 30 ng/ml of vitamin D has recently been scientifically upgraded to 50-60 ng/ml as the new recommended level for optimal health effects. 

This is why checking your vitamin D level is now standard in yearly checkup blood tests. 



  • Weaken skin elasticity, leading to wrinkles
  • Uneven darkening and tanning
  • Be a risk factor for skin cancer

How sunburn occurs.  Your skin naturally makes its own built-in, sun-damage protector, called melanin (the natural pigment that colors the skin and helps protect it against UV radiation damage).   As the skin is exposed to sunlight, melanin prompts the cells to churn out more melanin to darken the skin.  Yet, when the sun’s UV rays overwhelm the melanin protection, excessive tanning and sunburn can occur.   

It’s not only what you put onto the skin to protect it, but what you put into it – and that’s where Hawaiian Astaxanthin shines.



I like to think of Hawaiian Astaxanthin as the “sunshine supplement.”  Taking Hawaiian Astaxanthin, especially during sun season, makes good sun sense.  Follow my logic.  Skin damage from the sun is caused by oxidation, which damages the elastic tissue, collagen (the protein and structural fibers of the skin that add padding to the skin).  This weakens the skin’s elasticity, causing it to sag.  Since most skin damage is caused by oxidation, it makes sense to take one of nature’s most powerful antioxidants – Hawaiian Astaxanthin. 

Science agrees with this sun sense.  Scientists have studied why astaxanthin is a natural partner with skin health.  A study group was given 4 milligrams a day of Natural Hawaiian Astaxanthin for two weeks, followed by a repeat of the skin-reddening tests.  The results were that 4 milligrams of astaxanthin per day increased the amount of time it took for UV radiation to redden the skin. 

Why Natural Hawaiian Astaxanthin deserves its reputation for being called “an internal beauty pill.”  In a 2006 study, women were given 4 milligrams a day of Natural Hawaiian Astaxanthin.  At the end of six weeks the women taking it reported improvements in skin moisture, elasticity, and less wrinkles and dryness (Yamashita, et al., 2006).

-Dr. Bill



Natural Astaxanthin, Hawaii’s Supernutrient by William Sears, M.D., 2015

The UV Advantage and The Vitamin D Solution, books by Dr. Michael Holick

Yamashita, et al. (2006).  “The effects of a dietary supplement containing astaxanthin on skin condition,” Carotenoid Science, Vol. 10, pp 91-95

Tominaga, K., et al. (2017). “Protective effects of astaxanthin on skin deterioration,” J. Clin. Biochem. Nutr., 61:33-39

The Neuroscience Supporting Movement in Nature (2024) by William Sears, M.D., (Nutrex.com/articles)


*These statements have not been evaluated by the Food and Drug Administration.  This product is not intended to diagnose, treat, cure, or prevent any disease.

Consult your healthcare provider before starting a new diet, exercise, or health program.  Results may vary. 

Dr. Sears is a Nutrex-Hawaii ambassador.





Dr. Bill Sears has been practicing medicine for over 40 years. He received his medical degree from St. Louis University and medical training at Harvard University, the University of Toronto and the National Institute of Health. Dr. Sears has been a clinical professor at the University of South Carolina, University of Southern California School of Medicine and University of Irvine School of Medicine.

Dr. Sears is the author of 45 books including nutrition and wellness titles, including The T5 Wellness Plan, Prime-Time Health, The Family Nutrition Book, The Omega-3 Effect, The Inflammation SolutionThe Healthy Pregnancy Book, The Healthiest Kid in the Neighborhood, L.E.A.N. Kids, among others. He has spoken at numerous scientific conferences all over the world and has successfully motivated others to make positive health behavior changes through practical applications of simple and science-based strategies. Dr. Sears has been featured on 20/20, Dateline, Good Morning America, The Today Show, The View, PBS, CNN, Dr. Phil, The Doctors, and Oprah.