CortexMD Astaxanthin 12mg
What the research on astaxanthin shows
12 mg/day of astaxanthin over 4 weeks was associated with increased blood-flow velocity (p = 0.018).
View study →Over 10 days at 6 mg/day, whole-blood transit time grew faster — a measure of how easily blood moves through the smallest vessels (p < 0.01).
View study →Across randomized controlled trials, astaxanthin reduced MDA, a primary marker of oxidative stress.
View study →These statements describe research on the astaxanthin molecule and are not studies of the CortexMD product. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
Astaxanthin — a powerful antioxidant that supports healthy circulation, cardiovascular health, and your body's defense against oxidative stress.*
See the research →Dosed at the full 12 mg used in published research and sourced from Hawaiian microalgae — one clean softgel a day.
- Full 12 mg dose used in published research
- A potent antioxidant
- Supports healthy circulation
- Supports cardiovascular health
- Sourced from Hawaiian microalgae
*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.
🇺🇸 Ships From USA Facility
Try CortexMD for 90 full days. If you don’t feel more clarity, focus, and mental balance, we’ll refund every cent.
Just email us at support@cortexmd.co
or call us at +18646351503
Order Processing
All orders placed with CortexMD are processed within 1–2 business days, excluding weekends and holidays. You'll receive a confirmation email once your order is placed and another notification when your order has shipped.
Shipping Times & Rates
At CortexMD, we offer fast and reliable shipping on all orders. Delivery usually takes 5–14 days, depending on your location.
Tracking Your Order
Once your order ships, you'll receive a tracking number via email. Please allow 24 hours for the tracking link to update.
Lost or Delayed Orders
If your order hasn't arrived within 7 business days of the expected delivery date, please contact us at support@cortexmd.co and we'll be happy to assist.
It's about flow.
As we age, oxidative stress puts pressure on the delicate lining inside our blood vessels — the system that keeps blood moving the way it used to. Astaxanthin is one of nature's most powerful antioxidants, and it's uniquely built to support that system from the inside out.*
Fights oxidative stress
Astaxanthin helps neutralize the free radicals that build up against your cells over time.*
Supports the vessel lining
It works on both the watery and fatty sides of the cell membrane — something most antioxidants can't do.*
Supports healthy circulation
The result studied in research: support for healthy blood flow and cardiovascular health.*
What lets a wild salmon swim 2,000 miles upstream?
The answer is astaxanthin — the deep-red pigment that fuels the most extraordinary endurance in nature, concentrated from the microalgae salmon feed on. It's the same molecule NASA has studied for protecting astronauts, and the one Japanese researchers have studied for decades.
CortexMD sources its astaxanthin from Haematococcus pluvialis — the exact microalgae used in published human research — at the full 12 mg dose.
What the research on astaxanthin shows.
Here are examples of measurements reported in peer-reviewed astaxanthin studies.
12 mg/day of astaxanthin over 4 weeks was associated with increased blood-flow velocity (p = 0.018).
View study →Over 10 days at 6 mg/day, whole-blood transit time grew faster — a measure of how easily blood moves through the body's smallest vessels (p < 0.01).
View study →Across randomized controlled trials, astaxanthin reduced MDA, a primary marker of oxidative stress in the body.
View study →The 12 mg in each CortexMD capsule matches the dose used in the human research above. Not marketing math — the studied number.
These statements describe research on the astaxanthin molecule and are not studies of the CortexMD product. 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.
Why CortexMD, not the bottle next to it.
This isn't another mystery-blend pill from a late-night ad. It's a single, studied molecule — delivered the way the research did.
Full 12 mg research dose
The exact dose used in published human studies — no fractional, under-dosed servings.
Hawaiian Haematococcus pluvialis
The richest natural source of astaxanthin, and the form used in the research.
One studied molecule
No proprietary blends, no filler ingredients you can't pronounce. Just astaxanthin.
Oil-based softgel
Astaxanthin is fat-soluble — an oil softgel supports better absorption than dry powder.
Give it the full window.
Astaxanthin works gradually. In the research, effects were measured over several weeks — so take it daily and give your body the time the studies did.
- Take one softgel a day, with a meal that contains some fat.
- Most people take it consistently for 2–4 weeks before noticing a difference.
- Consistency matters more than dose-stacking — one a day, every day.
- Pairs well with the basics: movement, sleep, and a whole-food diet.
Try it for 90 days. The risk is ours.
If you're not completely satisfied, return the product within 90 days of delivery for a full refund — even if the bottle is opened. No hassle, no questions asked. We take on the risk so you don't have to.
Frequently Asked Questions
Can I buy CortexMD in stores?
At the moment, CortexMD is available exclusively through our official website. This helps us ensure product authenticity, maintain strict quality control, and offer the best possible pricing directly to our customers.
Is CortexMD safe to take with my current medications?
CortexMD is formulated with carefully selected ingredients and is generally well tolerated. However, if you are currently taking medication, have a medical condition, are pregnant or nursing, or have any specific health concerns, we recommend speaking with your healthcare provider before starting any new supplement.
How should I store CortexMD?
Store CortexMD in a cool, dry place away from direct sunlight. Keep the bottle tightly closed when not in use to help preserve freshness, quality, and potency.
How often should I take CortexMD?
Take one serving daily, or follow the recommended directions on the product packaging. For best results, take CortexMD consistently as part of your daily wellness routine.
How many servings are in each bottle?
Each bottle contains 30 servings. Please refer to the product label for the exact serving size and directions for use.
Are there any age or health restrictions?
CortexMD is intended for adult use. If you are under 18, pregnant or nursing, have a medical condition, take prescription medication, or have any allergies or sensitivities, please consult your healthcare provider before use.
What if CortexMD doesn't work for me?
We want you to feel confident when trying CortexMD. If you are not satisfied for any reason, contact us at support@cortexmd.co within 90 days of receiving your order. Our support team will help you with the best solution, whether that means a return, replacement, or refund.
What is your return policy?
If you are not satisfied with CortexMD, you can contact us within 90 days of receiving your order. We will guide you through the return process and help resolve the issue as quickly as possible. Your satisfaction is important to us.