Feel like yourself, at your prime

fullspan is built to shut down oxidative stress - the hidden cause of low energy, stiff joints and foggy afternoons that dull your prime. Nature's most powerful antioxidants, at full clinical doses.*

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  • 12 mg

    Pure astaxanthin per softgel

  • 6,000x

    Vitamin C in antioxidant power*

  • 40K+

    Sold and counting

cGMP manufactured
Non-GMO
No proprietary blends
Clinically studied ingredients

Why most supplements fail

× 4–6 mg

The dose most brands sell you.

Under-dosed actives, proprietary blends, cheap synthetic forms your body barely absorbs. You pay for the label, not results.


12 mg

The clinical dose.
Nothing hidden.

Every fullspan formula uses the named active at the dose used in human studies, in a form your body absorbs - made to the MERIDIANMARK™ standard, verified every lot.*

fullspan astaxanthin jar with red softgels and ingredient powders

Made to the standard.

Our published standard for ingredient origin, verified potency and purity. Every fullspan product is made to it - and proven lot by lot.

  1. 01 · Named origin

    Species, region and harvest documented for every lot. Natural - never the synthetic copy.

  2. 02 · Verified actives

    Measured in the finished softgel by an ISO 17025 lab. 12 mg on the label is 12 mg inside.

  3. 03 · Clean panel

    Every lot screened for heavy metals, pesticides and solvents. Results published by lot number.

What is MERIDIANMARK? →
  • CGMP
  • wada 3rd party tested
  • nonGMO
  • Made InUSA
fullspan Ceylon Cinnamon pouch being filled with red softgels on a production line

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Nature's most powerful ingredients, at the doses that work.

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fullspan. astaxanthin

meridianmark
  • Whole-body antioxidant protection*
  • Supports heart & blood vessel health*
  • Supports energy, joints & recovery*

From $29.99Regular price $59.99

  • Save 50%

fullspan high-absorption turmeric curcumin phytosome (1,000 mg)

meridianmark
  • Healthy Inflammatory Response Support*
  • Knee, Hip & Lower Back Comfort*
  • Easier Stairs & Walking*

From $24.99Regular price $49.99

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Dosed to work

Most brands sell a fraction of the studied dose. We use the full clinical amount.

12 mg

Typical

4–6 mg

Red microalgae, the natural source of astaxanthin

Real results

4.4 Excellent | Over 40,000 Sold

No more 3 pm crash

“Energy for my grandkids again, all the way to bedtime.”

Linda R.

Verified Buyer

My knees feel younger

“Stairs were the worst part of my day. Not anymore.”

Mark T.

Verified Buyer

The fog finally lifted

“My mornings feel clear again. Wish I'd found this sooner.”

Susan K.

Verified Buyer

Recovery like in my prime

“I bounce back after tennis, and I sleep better too.”

Dave M.

Verified Buyer

Easier morning walks

“My daily walk used to leave me stiff. Now I'm the one setting the pace.”

Karen P.

One I actually remember

“One softgel with dinner. First supplement I haven't forgotten to take.”

Tom W.

  • Dr. Karl Grikis, MD · Cardiologist
  • Matthew Jones · Sports Nutritionist

Expert Advice from Dr. Karl Grikis, MD | Interventional Cardiologist

“Most of my patients over 40 come in worried about one number - cholesterol, blood pressure, a stress test. What they don't see is what's happening underneath: years of oxidative stress quietly wearing down the cells that line their blood vessels. Astaxanthin is one of the most powerful natural antioxidants I've come across. It works right inside the cell membrane, and in a 12-week human study, 12 mg a day lowered triglycerides and raised HDL cholesterol. I recommend fullspan to anyone over 40 who wants to protect their heart and keep up with the life they want.”
Try fullspan astaxanthin
  • 90-Day Money-Back Guarantee
  • Ships From the USA

Expert Advice from Matthew Jones | Sports Nutritionist

“I've spent the last decade working with elite athletes, and the ones who last are the ones who protect their bodies between sessions. Hard training creates oxidative stress - and so does everyday life after 40. Astaxanthin is one of the few antioxidants I recommend to people who want to keep performing: it sits in the cell membrane, it's been studied for endurance and exercise performance, and one 12 mg softgel with a meal makes it easy to stay consistent. If you want to keep moving the way you did ten years ago, fullspan is where I'd start.”
Try fullspan astaxanthin
  • 90-Day Money-Back Guarantee
  • Ships From the USA