24 mg astaxanthin · 5 carotenoids · MCT oil
The antioxidant that reaches inside the fatty wall of every cell
Skin, eyes and the organs that filter all day wear down from the same place. Two softgels a day put 24 mg of the red molecule that spans it right there.
- 24 mg, 2x the 12 mg most brands stop at
- + 4 partners: lutein, zeaxanthin, lycopene, tocotrienols
- In MCT oil, because every one of them needs fat
30-day money-back guarantee. Skip or cancel refills anytime, no phone call.
One cause, four places it shows
Different organs. Same weak spot.
Every cell is wrapped in a thin, fatty wall. Fat oxidizes the way butter goes rancid on the counter, and that slow damage is what you notice as dry skin, tired eyes and heavier days.
Placebo skin got 23% drier over 16 weeks. Skin on astaxanthin held steady.1
Astaxanthin + lutein + zeaxanthin improved eye-hand coordination after screen work in 8 weeks. Ours has 4x each.12
In heavy smokers, oxidative damage markers fell within 3 weeks at every dose tested.5
In animal studies, astaxanthin reached the kidneys and shielded kidney cells from oxidative stress.15 In people, triglycerides fell at 12 and 18 mg, not 6.7
The mechanism
Most antioxidants stop outside the wall. Tap to see where yours sits.
Vitamin C dissolves in water. It stays in the fluid around the cell, outside the fatty wall where the damage is.
Regular vitamin E dissolves in fat but sits near the surface of the wall. The middle stays exposed.
Astaxanthin is long enough to line up across the whole wall, end to end. In lab studies it caught damage at the surface and inside, and kept the wall intact with 40% less oxidized fat.10,11
In people: across 12 randomized trials, astaxanthin lowered MDA, a blood marker of oxidized fat.6 It is the red in wild salmon, made by microalgae. Ours comes from that microalgae, not the synthetic kind.
Why most astaxanthin does little
It has to pass 3 checks to reach that wall
Trials have tested up to 40 mg a day, and several benefits only showed at 12 mg and above.7,5 Many brands sell 4 mg.
87 human studies found no safety concerns. Regulators approve up to 24 mg a day.14
It only dissolves in fat. Taken after a meal, the same dose reached 2.4x the blood levels.8 Oil-based formulas raised absorption 1.7 to 3.7x.9 Ours sits in MCT oil.
The eye, skin-tone and redness studies used partner carotenoids most astaxanthin leaves out. Ours has all four, at study-level doses:
- 24 mg natural astaxanthin from H. pluvialis microalgae
- In MCT oil, 2 softgels with your biggest meal
- + lutein, zeaxanthin, lycopene, tocotrienols
- Lab tested · GMO free · gluten free
What to expect
The studies ran 6 to 16 weeks. Plan for the run-in.
2 softgels with your biggest meal. Same time each day keeps levels topped up.
When the men’s skin study and the screen-work eye study took their readings.17,12
Where the women’s skin study ended: placebo skin drier, astaxanthin skin steady.1
That’s why most people start with the Complete Bundle: refills arrive every 4 weeks, so you never break the run.
What people say about Gold Seal
Astaxanthin is new to our line (August 2026), so most buyers are still in their first 60 days. These quotes are real and unedited, with their source.
“I noticed difference in first bag”
“Gold Seal Supplement company has been really good to me. The supplements were sent as expected. Canceling my subscription was easy, and the company made me feel appreciated. I will be ordering from them in the future.”
“Excellent product, customer service has been honest and did not try to snow me with false claims or try to ( resale me) the product speaks for itself.”
“Prompt response,clear explanation, professional and courteous. VERY RARE THESE DAYS. I would have NO problem doing business with this Company in the future.”
30 days to decide. Your money back if not.
Take it with your meals for 30 days. If you don’t like it for any reason, email support@goldsealsupplements.com and we refund the order. No need to send anything back. It covers refills too.
Refills ship every 4 weeks at your bundle price. Skip, change or cancel online in Manage Subscription, no phone call.
Halloween Sale
24 mg, in oil, with 4 partners. Pick your bundle.
30-day money-back guarantee. Skip or cancel refills anytime, no phone call.
Questions
When will I notice anything?+
The studies took their readings between 3 and 16 weeks. Some people say they notice a difference within the first pouch. Give it at least 6 to 8 weeks of daily use before you judge it.
How do I take it?+
2 softgels once a day with your biggest meal. Every carotenoid in it dissolves in fat, and taken after a meal, blood levels ran 2.4x higher.8
Can I take it with my medications?+
Natural astaxanthin was reviewed across 87 human studies with no safety concerns.14 If you take prescription medication, are pregnant or nursing, or manage a medical condition, ask your doctor first.
Why 24 mg and not 12?+
Several benefits only showed at 12 mg and above, and trials have tested up to 40 mg a day.7,5 24 mg is the top of the range regulators approve.
How does the subscription work?+
Your bundle refills every 4 weeks at the same price, with free shipping. Skip, change or cancel anytime in Manage Subscription or by email. No phone call, no contract.
References and disclosures
- Tominaga K et al. J Clin Biochem Nutr. 2017. 16 weeks, women 35 to 60, 6 or 12 mg vs placebo. Placebo skin moisture fell from 264.7 to 204.9 units; astaxanthin groups held steady. Industry-funded. PubMed
- Zhou X et al. Nutrients. 2021. Review of 9 controlled trials: better skin moisture and elasticity; wrinkle depth not significant. PubMed
- Stahl W et al. J Nutr. 2001. About 16 mg lycopene a day from tomato paste for 10 weeks: 40% less redness after UV light. PubMed
- Juturu V et al. Clin Cosmet Investig Dermatol. 2016. 10 mg lutein + 2 mg zeaxanthin, 12 weeks, placebo-controlled: brighter, more even skin tone. PubMed
- Kim JH et al. J Med Food. 2011. Heavy smokers, 5, 20 or 40 mg for 3 weeks, randomized by dose (no placebo): oxidative damage markers fell in every group. PubMed
- Ma B et al. Nutr Res. 2022. Meta-analysis of 12 randomized trials: lower MDA, a blood marker of oxidized fat. PubMed
- Yoshida H et al. Atherosclerosis. 2010. 12 weeks, placebo-controlled: triglycerides fell at 12 and 18 mg, not at 6 mg. PubMed
- Okada Y et al. Biosci Biotechnol Biochem. 2009. Taken after a meal, the same dose reached about 2.4 times the blood levels. Small open study. PubMed
- Mercke Odeberg J et al. Eur J Pharm Sci. 2003. Lipid-based formulas raised astaxanthin absorption 1.7 to 3.7 times. PubMed
- Goto S et al. Biochim Biophys Acta. 2001. Lab study in model membranes: astaxanthin trapped radicals at the surface and inside the membrane. Not a human study. PubMed
- McNulty HP et al. Biochim Biophys Acta. 2007. Lab study: astaxanthin kept membrane structure and lowered lipid hydroperoxides by 40%. Not a human study. PubMed
- Yoshida K et al. Nutrients. 2023. 6 mg astaxanthin + 10 mg lutein + 2 mg zeaxanthin, 8 weeks, screen users: better eye-hand coordination after screen work. PubMed
- AREDS2 Research Group. JAMA. 2013. Used 10 mg lutein and 2 mg zeaxanthin a day, chosen to replace beta-carotene. PubMed
- Brendler T, Williamson EM. Phytother Res. 2019. Safety review of 87 human studies of natural astaxanthin. Approved doses range from 2 to 24 mg a day by country. PubMed
- Animal studies of induced kidney injury, e.g. Qiu X et al. 2015. Animal data only. The one human trial (kidney transplant recipients) found no change in oxidative stress markers. No human kidney outcome is claimed on this page. PubMed
- Serbinova E et al. Free Radic Biol Med. 1991. Lab test on liver cell membranes: tocotrienols had 40 to 60 times the antioxidant activity of regular vitamin E. Not a human study. PubMed
- Tominaga K et al. Acta Biochim Pol. 2012. Men, 6 weeks, double-blind: better crow's-feet wrinkle and elasticity scores than placebo. PubMed
Studies tested the ingredients, not our product. Lab and animal studies are labeled as such. Customer quotes are real and unedited; Trustpilot quotes are about the company. Values shown are one-time prices: Astaxanthin $41.95 a pouch, Vitamin D3 + K2 $30.00, bamboo lid glass jar $24.99.
Privacy · Terms · Refunds · Contact · Manage subscription
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. © 2026 Gold Seal Supplements.
