Home › Ingredients › Astaxanthin
Astaxanthin
4 mg per day
An algae-derived carotenoid included as an antioxidant ingredient. SOOID provides 4 mg per recommended daily serving.

The relevant 4 mg study
- Ingredient dose
- 4 mg astaxanthin daily
- Study size
- 23 participants enrolled
- Focus
- UV-induced skin changes
- Scope
- Not a finished-SOOID trial
Ito N, et al. Nutrients 2018;10(7):817. DOI: 10.3390/nu10070817.
Read the sourceAstaxanthin is one of the carotenoids in SOOID. Its role belongs alongside—not instead of—your usual skincare and sunscreen.
Part of the six-ingredient SOOID formula — free US shipping, 60-day guarantee.
Shop SOOID · from $49.43Keep sunscreen in your routine.
SOOID provides 4 mg of astaxanthin per recommended daily serving. Ito et al. studied 4 mg in a small trial of UV-induced skin changes.
That ingredient study did not test the finished SOOID formula or prove wrinkle reversal. Keep using sunscreen as directed.
What can be concluded
- Evidence
- A small ingredient study
- Not established
- SOOID wrinkle reversal or superiority to sunscreen
- Daily amount in SOOID
- 4 mg
Ito N, et al. Nutrients 2018;10(7):817. DOI: 10.3390/nu10070817.
Read the sourceCell experiments and antioxidant assays are not proof of the same effect in customers. This page does not claim that 4 mg of astaxanthin in SOOID reverses wrinkles or blocks MMP-1 in users.
Ingredient research, not a clinical trial of finished SOOID. Individual results vary. Follow the product label and ask a qualified clinician about persistent skin concerns.
Explore the six-ingredient formula.
Shop SOOID Anti-Age