Fullspan Ceylon Cinnamon pouch with softgel capsules, cinnamon sticks and cinnamon powder on a sunlit counter

Built for the full span
of your life.

We believe your body deserves better than a slow decline. Stress, poor sleep, screens and processed food flood your cells with oxidative stress every day - and to stay in your prime, your natural defenses need to keep up. No magic pills. Just the right ingredient, at the right dose, to help your whole body fight back.*

Our mission: help 1,000,000 people feel like they're in their prime.

Too many supplements are built backwards: the cheapest raw powder, the smallest dose that still looks good on a label, and a "proprietary blend" that hides how little is inside. We built fullspan to raise the bar. Every formula has to pass one test before we make it: is this the ingredient, the form and the dose used in real human research? If the answer isn't a clear yes, we don't make it.

fullspan supplement pouches and jar beside laboratory glassware
  • 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

Made to the MERIDIANMARK™ standard.

No blends. No guesswork. MERIDIANMARK is fullspan's published standard for ingredient origin, verified potency and purity - applied to every product we make, and proven lot by lot.

  1. 1 · Named origin

    Species, region, harvest window and extraction method - documented for every lot. For astaxanthin: natural Haematococcus microalgae, never the synthetic copy.

  2. 2 · Verified actives

    The active is measured in the finished softgel you swallow - not the raw powder - by an ISO 17025 lab. 12 mg on the label is 12 mg in the softgel.

  3. 3 · Clean panel

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

One ingredient.
Its best-known origin.

Not whichever supplier is cheapest this month. We source every ingredient from the place that knows it best - and test every lot before it ships.

  • GreeceOil of Oregano
  • IndiaAmla
  • FranceBeetroot
  • JapanAstaxanthin
  • SpainAged Garlic
  • ItalyTurmeric
  • GermanyMilk Thistle

Feel the difference in 90 days - or it's free.

We stand behind every softgel. Take fullspan daily for 90 days. If you don't love how you feel, email us and we'll refund every penny.

Try It Risk-Free