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Dietary supplement

Astaxanthin Gold 4 mg Ingredients & Drug Interactions

by NutriGold

Astaxanthin Gold 4 mg label
See full label image
Softgel Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Astaxanthin Gold 4 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Astaxanthin Gold 4 mg is a dietary supplement by NutriGold with 1 active ingredient. Its ingredients are commonly taken for antioxidant support, skin health and aging, eye health.Based on those ingredients, 671 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are AstaReal. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Astaxanthin Gold 4 mg by NutriGold

Ask about any prescription or over-the-counter medication and we check it for interactions with Astaxanthin Gold 4 mg by NutriGold — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Astaxanthin Gold 4 mg by NutriGold

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: astaxanthin (provided as AstaReal), a naturally occurring red pigment found in marine organisms. The softgel capsule also holds inactive ingredients — extra virgin olive oil, bovine gelatin, glycerin, and water — which help deliver the astaxanthin.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Astaxanthin's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Supports energy, endurance, eye, joint, skin, immune, and heart health.
  • We looked for evidence on: Age-related macular degeneration (AMD), Aging skin, Athletic performance, Dry eye, Exercise-induced muscle damage, Exercise-induced muscle soreness — and 4 related terms.
  • The closest evidence on file: Astaxanthin is rated "Insufficient Reliable Evidence To Rate" for Age-related macular degeneration (AMD) (Natural Medicines).
  • Also on file: Astaxanthin is rated "Insufficient Reliable Evidence To Rate" for Aging skin, Athletic performance, Heart failure, Dry eye, and more.

The evidence for astaxanthin isn't established yet in the data we hold. The product is marketed for conditions like age-related cognitive decline, macular degeneration (age-related eye disease), aging skin, Alzheimer disease, athletic performance, and carpal tunnel syndrome — but we have insufficient reliable evidence to rate how well it works for any of these.

The evidence, ingredient by ingredient Astaxanthin

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Astaxanthin in this dose appears generally well tolerated in studies, though long-term safety data are limited. The most common side effects are abdominal pain, diarrhea, and red-colored stools — which may sound alarming but typically reflect the pigment passing through your system.

One study at a much higher dose (40 mg daily, well above this product's 4 mg) reported severe stomach pain in a small number of participants. There isn't enough safety data during pregnancy or breastfeeding, so the safety data advise against using this supplement if you're pregnant or nursing.

Talk with your doctor or pharmacist for personalized advice about whether this is right for you in those situations.

Side effects, ingredient by ingredient Astaxanthin

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Astaxanthin.
  • The most serious interaction on file is rated Moderate.
  • For scale: 672 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking Astaxanthin Gold 4 mg, check any medications metabolized by the liver enzymes CYP3A4 and CYP2B6 — astaxanthin may theoretically lower their levels. This includes a large number of drugs, so use the medication checker on this page to be sure.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Astaxanthin Gold may interest you if you're looking to support general wellness and age-related health — but the evidence for specific conditions isn't yet established. If you take medications processed by your liver, especially blood pressure drugs, heart medications, or immunosuppressants, check them first with your pharmacist or the tool on this page.

Pregnant and breastfeeding folks should skip it and talk with their doctor.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated May 23, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Astaxanthin Gold 4 mg, straight from the product label.

Brand NutriGold
Barcode (UPC) 859447002524
Net contents 120 Softgel(s)
Market status On market
Date entered into DSLD May 23, 2024
DSLD ID 309902
Product type Non-nutrient/non-botanical
Supplement form Softgel Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Astaxanthin Gold 4 mg by NutriGold, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Softgel(s)
Maximum serving Sizes:
1 Softgel(s)
Servings per container
120
UPC/BARCODE
859447002524
IngredientAmount% DV
AstaReal4 mg--

Other ingredients: Extra Virgin Olive Oil, Bovine Gelatin, Glycerin, Water

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Natural, non-GMO verified, clinically-proven, patented AstaReal astaxanthin harvested, processed, and manufactured in the USA.

#1 Clinically-proven Astareal

AstaReal The natural Astaxanthin of choice Clinically proven

Formulation

Health benefits: Supports energy, endurance, and eye, joint, skin, immune, and heart health.

Verified free of corn, egg, gluten, milk, peanut, shellfish, and soy allergens by an independent lab. Manufactured without magnesium stearate, stearic acid, silicon dioxide, or chemical preservatives.

6,000x stronger than vitamin C

Non GMO verified Tested and verified non-GMO by an independent lab.

Locally sourced

Brand IP Statement(s)

AstaReal is a registered trademark of Fuji Chemical Industry Co. Ltd.

General Statements

To learn more about this product, scan QR code or visit nutrigold.com/item/252

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, adults take 1 softgel 1 to 3 times daily with food, or as directed by a healthcare professional.

Precautions

Caution: Please consult a healthcare professional before taking this supplement if you are pregnant, breastfeeding, or taking any medications.

Keep out of reach of children.

Storage

Store in original container away from moisture and direct sunlight.

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Astaxanthin Gold 4 mg by NutriGold label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Astaxanthin Gold 4 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Astaxanthin Gold 4 mg by NutriGold

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Softgel(s) Dosage formSoftgel Capsule Servings per container120 Amounts shown are per serving.

AstaReal

Interacts with
671 drugs
4 mg per serving Form: Astaxanthin

Astaxanthin is a reddish carotenoid pigment with strong antioxidant activity in the lab, and it is widely promoted for skin, eye, heart, and exercise...

AstaReal monograph & interactions

Other (inactive) ingredients: Extra Virgin Olive Oil, Bovine Gelatin, Glycerin, Water. These complete the product’s ingredient list but are not active constituents.

Interaction report

Astaxanthin Gold 4 mg by NutriGold Drug Interactions

Want to check YOUR meds against Astaxanthin Gold 4 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
671Drugs
671 Moderate

Ingredients driving the most interactions

AstaReal 671

Individual Drug Interactions

The ingredients in Astaxanthin Gold 4 mg interact with 671 drugs. Click any drug to see the details.

1 of the 1 ingredient in Astaxanthin Gold 4 mg interact with drugs. Each result below shows which ingredient is responsible. AstaReal

Each ingredient & the kinds of drugs it affects

For each ingredient in Astaxanthin Gold 4 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

AstaReal2 drug types · 671 drugs

Cytochrome P450 2B6 (Cyp2B6) Substrates

Theoretically, astaxanthin may decrease levels of drugs metabolized by CYP2B6.
In vitro research shows that astaxanthin induces cytochrome CYP2B6 enzyme activity in human hepatocytes. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, astaxanthin may decrease levels of drugs metabolized by CYP3A4.
In vitro research shows that astaxanthin induces CYP3A4 enzyme activity in human hepatocytes. This effect has not been reported in humans.

Likelihood Possible Evidence D
AstaReal full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Astaxanthin Gold 4 mg, from the product label.

NutriGold

Name
NutriGold Inc.
City
Orem
State
UT
ZipCode
84057
Phone Number
(800) 476-3542
Web Address
www.nutrigold.com
Pharmacist Counseling Corner

Astaxanthin Gold 4 mg by NutriGold: Common Questions

Does Astaxanthin Gold 4 mg by NutriGold interact with any medications?
Yes. Based on its ingredients, Astaxanthin Gold 4 mg has a known interaction with 671 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Astaxanthin Gold 4 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is astaxanthin and where does it come from?
Astaxanthin is a red pigment naturally found in marine organisms. In this product, it's provided as AstaReal, a branded form of the ingredient.
Will this supplement help with brain fog or memory as I age?
The evidence for astaxanthin and age-related cognitive decline isn't established yet — we have insufficient reliable data to say whether it works for this purpose.
Is it normal for my stools to turn red?
Yes. Red-colored stools are a common and harmless side effect reflecting the astaxanthin pigment passing through your digestive system.
Can I take this while pregnant?
There isn't enough safety data to know either way, so the safety data advise against it. Talk with your doctor or pharmacist for personalized guidance.
Are there any fillers or other ingredients I should know about?
The softgel capsule contains extra virgin olive oil, bovine gelatin, glycerin, and water as inactive ingredients to deliver the astaxanthin.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Astaxanthin Gold 4 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Astaxanthin Gold 4 mg label
Go deeper

The Full Monographs Behind Astaxanthin Gold 4 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Astaxanthin

Interacts with 671 drugs

Astaxanthin is a reddish carotenoid pigment with strong antioxidant activity in the lab, and it is widely promoted for skin, eye, heart, and exercise benefits. Early human studies are promis...

Read the full Astaxanthin monograph →
Sources

Sources & How We Checked

Astaxanthin Gold 4 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 3 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Astaxanthin 3 references
  1. Kupcinskas L, Lafolie P, Lignell A, et al. Efficacy of the natural antioxidant astaxanthin in the treatment of functional dyspepsia in patients with or without Helicobacter pylori infection: A prospective, randomized, double blind, and placebo-controlled
  2. Kistler, A., Liechti, H., Pichard, L., Wolz, E., Oesterhelt, G., Hayes, A., and Maurel, P. Metabolism and CYP-inducer properties of astaxanthin in man and primary human hepatocytes. Arch.Toxicol. 2002;75(11-12):665-675. PubMed
  3. Choi HD, Youn YK, Shin WG. Positive effects of astaxanthin on lipid profiles and oxidative stress in overweight subjects. Plant Foods Hum Nutr. 2011;66:363-369. PubMed

See these in context on the Astaxanthin monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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