Home Ingredients Zanthin® (Natural Astaxanthin)
AntioxidantHair, Skin & NailsEye Health

Zanthin® (Natural Astaxanthin)

Evidence Level
Moderate
1 Clinical Trial
3 Documented Benefits
3/5 Evidence Score

Zanthin® is a natural astaxanthin from Haematococcus pluvialis microalgae. Astaxanthin is a carotenoid antioxidant studied for supporting skin health, eye comfort, and recovery from exercise.

Studied Dose Commonly 4 to 12 mg of astaxanthin per day.
Active Compound Astaxanthin, a red carotenoid antioxidant, typically from Haematococcus pluvialis microalgae.

Benefits

Skin health

Astaxanthin is studied for supporting skin elasticity and moisture and reducing the look of fine lines — a beauty-from-within use supported by a meta-analysis of generic astaxanthin (not Zanthin® specifically).

Supported by Trial 1

Antioxidant power

Astaxanthin is a carotenoid antioxidant studied for helping the body defend cells against oxidative stress.

Supported by Trial 1

Eye and muscle support

Astaxanthin is also studied for supporting eye comfort and exercise recovery, thanks to its antioxidant reach.

Supported by Trial 1

Mechanism of action

1

Singlet-oxygen quenching

Astaxanthin's unique structure lets it span cell membranes and quench singlet oxygen and free radicals.

2

Anti-inflammatory action

By lowering oxidative stress, astaxanthin calms inflammatory signaling in skin, muscle, and other tissues.

Clinical trials

1
Astaxanthin and Skin Aging — Meta-Analysis
PubMed

Systematic review and meta-analysis of astaxanthin on human skin aging. (Zhou et al. 2021, Nutrients)

Adults across multiple trials.

Across trials of generic astaxanthin (not Zanthin® specifically), supplementation supported improvements in skin elasticity and moisture and reductions in wrinkle measures versus control.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated — adverse effects are uncommon.
High doses can give a slight reddish skin tint (harmless).
Mild digestive upset is occasionally reported.

Important Drug interactions

Anticoagulants — possible mild additive effect; monitor.
Generally compatible with medications.
Tell your doctor if pregnant or breastfeeding.

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Frequently asked questions about Zanthin® (Natural Astaxanthin)

What is Zanthin?

Zanthin® is a natural astaxanthin from Haematococcus pluvialis microalgae. Astaxanthin is a carotenoid antioxidant studied for supporting skin health, eye comfort, and recovery from exercise.

What is Zanthin used for?

Zanthin is researched primarily for Antioxidant, Hair, Skin & Nails, and Eye Health. Astaxanthin is studied for supporting skin elasticity and moisture and reducing the look of fine lines — a beauty-from-within use supported by a meta-analysis of generic astaxanthin (not Zanthin® specifically).

What is the recommended dosage of Zanthin?

The clinically studied dose is Commonly 4 to 12 mg of astaxanthin per day. Always follow the product label and check with a healthcare provider for personal advice.

Is Zanthin safe, and does it have side effects?

For most healthy adults, Zanthin is well tolerated at studied doses. Reported effects can include: Generally well-tolerated — adverse effects are uncommon. High doses can give a slight reddish skin tint (harmless). It may also interact with some medications. Zanthin is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Zanthin interact with any medications?

Possible interactions include: Anticoagulants — possible mild additive effect; monitor. Generally compatible with medications. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Zanthin?

NutraSmarts rates the evidence for Zanthin as Moderate (3 out of 5). It is backed by 1 clinical trial and 1 cited reference summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Zhou X, Cao Q, Orfila C, et al. Systematic Review and Meta-Analysis on the Effects of Astaxanthin on Human Skin Ageing. Nutrients. 2021;13(9)..PubMedUsed to support: Meta-analysis supporting skin and antioxidant benefit of astaxanthin (the active in this branded astaxanthin).