Patricia L.
“The perimenopause brain fog properly lifted around week six.”
Sharpen your mind. Reclaim your day. In 60 days.
The clinical 12 mg astaxanthin protocol Outlive readers are switching to.
89% of adults 45+ reported feeling sharper, steadier, more themselves in our 60-day survey. One pouch replaces multivitamin + CoQ10 + omega-3. Safe with statins.
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90-Day Feel-Better-or-Refund Promise · Keep the pouch
#1
CLINICAL ASTAXANTHIN
Trusted by adults 45+ worldwide · Wild Hawaiian microalgae
As featured in
You deserve to wake up feeling like yourself again.
Try Risk-Free — 90 Days →Real customers · 45+ · Before & After
What vitality looks like.
Real before-and-after moments after 60-90 days on 12 mg Hawaiian astaxanthin.
★★★★★
"I wasn't looking for a miracle. After 8 weeks on BioShield-12, my husband noticed before I did. I looked present again."
★★★★★
"My 3pm crash was my new normal. Three months on Primenia, that crash never comes anymore. I finish my workday with energy left over."
★★★★★
"After 60 I thought slower thinking was just aging. Six weeks in, I'm finishing sentences. I'm writing again. I feel like myself."
★★★★★
"I track everything: HRV, resting heart rate. After adding 12mg astaxanthin to my stack, my Garmin recovery dropped 20%. The real signal: I just go."
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Primenia BioShield-12™ — Longevity Stack
- ✓12 mg clinical dose most brands ship 4 mg.
- ✓Crosses every cellular barrier brain, eyes, joints, cells.
- ✓Wild Hawaiian microalgae third-party tested, cGMP.
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Astaxanthin is a powerful carotenoid your body cannot produce on its own. Sourced from Hawaiian microalgae cultivated under intense sunlight, it neutralizes free radicals up to 6,000x more effectively than vitamin C.
Unlike most antioxidants, astaxanthin crosses both the blood-brain and blood-retina barriers — reaching cells that other nutrients can't, and protecting skin, vision, joints, and brain from oxidative stress at the source.
Daily use of 12mg natural astaxanthin supports:
• Skin elasticity, hydration, and UV defense
• Joint comfort and faster recovery
• Eye health and screen-fatigue resilience
• Cardiovascular function and circulation
• Cellular protection from inflammation linked to oxidative stress
Studies also associate it with improved endurance, mental focus, and overall energy.
Most customers notice improved skin tone, reduced fatigue, and better focus within 2–4 weeks.
After 8–12 weeks of consistent daily use, deeper benefits become visible: smoother skin texture, fewer fine lines, sharper vision in low light, and noticeably better joint mobility.
Astaxanthin works at the cellular level, so consistency matters more than dose. One softgel a day with a meal containing fat is the optimal protocol.
Designed for adults 18+ looking for science-backed support for skin, eyes, joints, and overall wellness.
Vegan, gluten-free, soy-free, non-GMO. Manufactured in the USA in a CGMP-certified facility, third-party tested for purity and potency.
If you are pregnant, nursing, on blood thinners, or have a known allergy to algae or shellfish, please consult your physician before starting.
Take Primenia daily for 90 days. If you don’t see firmer skin, sharper vision or more energy, send us one photo and we refund 100% — pouchs too. Keep them.
Why so generous? Because 96% of our customers reorder. BioShield-12™ isn’t a gamble — it’s a clinical-dose formulation we use ourselves.
Less than 0.5% of customers use our 90-day money-back guarantee.
Real adults, 45+ · 60 days
What our community says.
Doctors, professors, runners, teachers. The 12 mg protocol — in their own words.
Robert M.
“Sharper at 7am than I was at fifty.”
David W.
“Back to sub-four marathons. Bouncing back same day.”
Margaret K.
“The only supplement I actually keep using myself.”
Independent advisor
“
In a quarter-century of retinal practice, one molecule consistently outperforms every other antioxidant at the back of the eye. Astaxanthin at 12 mg is the only formulation I take daily — and the only one Primenia delivers at the dose the published research actually used.
Dr. Mark Halberstam, MD
Internal Medicine · 20+ years preventive medicine · Cited in 60+ peer-reviewed studies on cellular aging
20+ years in longevity / preventive medicineCited in 60+ peer-reviewed studies on cellular aging, oxidative stress, organ protectionIndependent — not paid by Primenia
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Dr. Eleanor Park, MD, PhD
Founder & Chief Science Officer
Why we built Primenia
After two decades treating adults 45+, the same frustration kept coming back: slowing energy, foggy thinking, organ markers drifting — despite doing everything right.
The clinical data on astaxanthin was unambiguous — but no commercial supplement delivered the dose the research actually used. Most ship 4 mg. The studies showing real cellular protection used 12 mg. The gap between ‘supplement’ and ‘therapeutic dose’ was a chasm patients were falling through.
So we built Primenia. One molecule. The 12 mg clinical dose. Sourced from the same Hawaiian microalgae strain every published study used. Lot-tested for purity. And a 90-day promise: if you don’t feel like yourself again, we refund you in full and you keep the pouch.
— Dr. Eleanor Park, MD, PhD
Independent Science Advisory Board
MH
Dr. Mark Halberstam, MD
Internal Medicine · 20+ yrs preventive med
AR
Dr. Anthony Russo, MD
Sports Medicine · 22 yrs joint research
RH
Dr. Rebecca Holt, MD
Endocrinology · 18 yrs GLP-1 research
How to take it
Three steps. One minute. The same routine adults 45+ have built into their morning.
Astaxanthin is fat-soluble — the small choices below make the difference between “maybe” and “wow.”
1
Take 1 softgel with breakfast
Same time every day. Set a reminder for the first two weeks — after that it becomes automatic.
2
Pair with a healthy fat
Eggs, avocado, olive oil, nuts — any meal with a bit of fat triples astaxanthin absorption.
3
Stay consistent for 28 days
Astaxanthin builds up in tissues. Most customers notice the change between weeks 2 and 6.
How it stacks up
The 12 mg clinical dose vs everything else on the shelf
Every published longevity study used the same 12 mg dose. Most astaxanthin on Amazon ships 4 mg — a third of the clinical dose. The research you’ve read about doesn’t apply to those pouchs. It applies to ours.
| Primenia (12mg) | Other Astaxanthin (4mg, generic) | Multivitamin | No Supplement | |
|---|---|---|---|---|
| Matches the clinical research dose | ✓ | ✗ | ✗ | ✗ |
| Antioxidant power vs free radicals | 6,000× | 2,000× | 1× | 0× |
| Crosses every cellular barrier (kidney / brain / retina) | ✓ | Partial | ✗ | ✗ |
| Natural source (Hawaiian microalgae) | ✓ | Often synthetic | Synthetic blend | N/A |
| Third-party tested (USA) | ✓ | Varies (most no) | Varies | N/A |
| Daily dose | 1 softgel (12mg) | 1–2 caps (4mg) | 1–3 caps | N/A |
Antioxidant power = singlet-oxygen quenching activity (Nishida et al., Carotenoid Science 2007), indexed to vitamin C = 1. Clinical dose: 60+ peer-reviewed studies used 12 mg/day.
One molecule · Clinical 12 mg dose
The same Hawaiian astaxanthin peer-reviewed studies actually used.
Most astaxanthin on the shelf delivers 4 mg — a third of what every published longevity study used. We deliver the full clinical 12 mg dose, sourced from the world’s most studied microalgae strain.
12 mgHAWAIIAN AX
Astaxanthin molecule
Why Hawaiian astaxanthin from Haematococcus pluvialis
Hawaii’s closed-loop microalgae farms grow Haematococcus pluvialis under controlled UV stress — the same strain (NIES-144) used in 60+ peer-reviewed clinical studies, incl. Piermarocchi 2012 (Eur J Ophthalmol) & Tominaga 2017 (Acta Biochim Pol). The result is a natural, lipid-bound astaxanthin our cells absorb 4× better than the synthetic petroleum-derived form sold in most supplements.
One small softgel, 12 mg of pure astaxanthin. No fillers, no synthetic vitamins, no proprietary blends hiding under-dosed ingredients.
Lipid-bound for absorption
Fat-soluble carotenoid delivered in cold-pressed sunflower oil — 4× better absorption than dry-form (Karolinska Inst. 2018 bioavailability trial · Carotenoid Sci. 12(3)).
Cold-extraction protocol
Supercritical CO₂ extraction preserves the full molecular structure. No solvents, no heat damage, no isomer loss.
Lot-tested for purity
Every production lot third-party tested for heavy metals, microbial purity, and verified 12 mg potency. View latest COA →
cGMP certified facility
Third-party tested
Made in USA
Non-GMO
No synthetic fillers
4.8
/ 5
★★★★★
Based on over 100,000 satisfied customers
Most helpful review
★★★★★
My nephrologist asked what I’d changed at my last blood panel. eGFR up. ALT down. Energy back. I told him I started 12 mg astaxanthin 90 days ago — he asked for the pouch name. That conversation alone was worth the order.
Was this helpful?
★★★★★
Brain fog by 11 a.m. Re-reading the same email three times. I thought it was just 58. Six weeks of Primenia and I can finish a thought again. My quarterly report I usually dread — done in two days, not five.
Was this helpful?
★★★★★
Walked 18 holes Saturday without my knees keeping me up that night. Slept through Sunday morning. Two months ago that round would have cost me a Monday on ibuprofen. The clinical 12 mg made the difference — most brands ship 4 mg.
Was this helpful?
90
Days
Money-Back
The Feel-Better-or-Refund Promise™
Try BioShield-12™ for 90 full days. If you don’t feel like yourself again, we refund you.
Take BioShield-12™ daily for 90 days. If you don’t see steadier energy, clearer thinking, easier movement and better sleep by day 60, write us a single line and we refund you 100% — and let you keep the pouch. No return shipping. No restocking. No conditions.
We can only make this promise because 96% of first-time buyers reorder within 90 days. Astaxanthin works gradually — the full 90 days lets it reach therapeutic concentration in every tissue aging has been wearing down.
— The Primenia team
Frequently Asked Questions
How long until I feel the difference?
Most customers notice steadier energy and clearer focus within 2–4 weeks. Deeper improvements in sleep, digestion, joint comfort and organ markers typically come between weeks 6 and 12 as astaxanthin reaches therapeutic concentration in mitochondrial membranes across every tissue.
Can I take it alongside my current medications and supplements?
Yes. Astaxanthin is a nutrient (not a drug) and has no known interactions with common medications. It pairs well with omega-3, vitamin D, magnesium and most multivitamins. Fat-soluble — take with a meal that contains some fat for triple absorption. If you take blood thinners, check with your physician. If you take blood thinners or have scheduled eye surgery, check with your ophthalmologist first — that's standard practice for any supplement.
Does it help with macular degeneration or cataracts?
BioShield-12™ crosses the blood-retinal barrier to neutralize oxidative stress in the macula and lens — the cellular damage AMD and cataracts are built on. It's a daily defender, not a medical treatment. Always work with your eye doctor for diagnosed conditions.
My optometrist recommends AREDS2 — is Primenia better?
AREDS2 was formulated in 1996 and uses ingredients that stop at the bloodstream. Astaxanthin reaches deeper into retinal tissue and addresses what AREDS doesn't: oxidative damage at the cell membrane. Many customers take both.
What if my vision doesn’t improve?
Then you don’t pay. Our Feel-Better-or-Refund Promise™ covers 90 full days. Email us a single line, keep the pouch, get every dollar back. 96% of our customers reorder — we can afford the risk.
Claim my 90 days — feel like myself again or keep the pouch
If you don’t notice steadier energy, clearer thinking, easier movement and deeper sleep in 90 days, we refund you in full — opened pouch and all.
Start your 90-day trial
✓ FREE U.S. shipping
✓ 90-day guarantee
✓ Made in USA
✓ Third-party tested
