Astaxanthin

虾青素 Astaxanthin

Place · Level 3 · Supplement

橙红色的强抗氧化剂, 来自海洋微藻; 在眼疲劳和皮肤防晒上有 B 级证据, 但不是万能抗老神药

Connected to · 3

synergy · 1

Lutein + Zeaxanthin
Complementary carotenoid distribution: lutein + zeaxanthin concentrate at the macula center; astaxanthin populates retinal periphery + scavenges ROS. Long screen / eye strain / age-related AMD prevention — three-component stack is the rational combination.

regulates · 1

Multivitamin
The same carotenoid chemistry flips from antioxidant to pro-oxidant above a certain dose. That is how beta-carotene raised lung cancer in smokers in ATBC and CARET in the 1990s — more antioxidant is not better.

contrast · 1

Spirulina
Two unrelated molecules the shelf conflates: real astaxanthin comes from the red microalga H. pluvialis and is an orange-to-blood-red ketocarotenoid; the blue Blue Majik is phycocyanin from spirulina. Blue astaxanthin is the two being sold as one.

The orange-red king of the sea

Stop 1/6

海里的橙红色之王

Astaxanthin (3,3'-dihydroxy-β,β-carotene-4,4'-dione) is a distant cousin in the carotenoid family — same family as β-carotene (vit A precursor) / lycopene / lutein / zeaxanthin, but with a unique structure.

Nature's 'orange-red maker':

The marine microalga *Haematococcus pluvialis* is the number-one producer — when stressed (strong light / hypoxia / nitrogen starvation), it dyes itself blood-red as a defenseKrill eat these algae → they get dyedSalmon / trout / red trout eat krill → flesh turns pink — this is the chemical root of why salmon is pinkFlamingos / scarlet ibis eat astaxanthin-containing algae → feathers turn pink
Animals cannot synthesize it — humans and most animals get it via the food chain, with no endogenous synthesis pathway. This is the complete opposite of vitamin D (endogenous synthesis).

Typical human intake:

A serving of wild salmon (~150 g) contains ~0.5–1 mg astaxanthinA serving of farmed salmon ~0.1–0.5 mg (added via feed)A typical Chinese diet: close to 0 mg/dayTypical supplement dose: 4–12 mg/day — far above food levels (10–100×)

Read story

Educational content, not medical advice — consult a clinician.

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Astaxanthin

虾青素 Astaxanthin

Place · Level 3 · Supplement

橙红色的强抗氧化剂, 来自海洋微藻; 在眼疲劳和皮肤防晒上有 B 级证据, 但不是万能抗老神药

Connected to · 3

synergy · 1

Lutein + Zeaxanthin
Complementary carotenoid distribution: lutein + zeaxanthin concentrate at the macula center; astaxanthin populates retinal periphery + scavenges ROS. Long screen / eye strain / age-related AMD prevention — three-component stack is the rational combination.

regulates · 1

Multivitamin
The same carotenoid chemistry flips from antioxidant to pro-oxidant above a certain dose. That is how beta-carotene raised lung cancer in smokers in ATBC and CARET in the 1990s — more antioxidant is not better.

contrast · 1

Spirulina
Two unrelated molecules the shelf conflates: real astaxanthin comes from the red microalga H. pluvialis and is an orange-to-blood-red ketocarotenoid; the blue Blue Majik is phycocyanin from spirulina. Blue astaxanthin is the two being sold as one.

The orange-red king of the sea

Stop 1/6

海里的橙红色之王

Astaxanthin (3,3'-dihydroxy-β,β-carotene-4,4'-dione) is a distant cousin in the carotenoid family — same family as β-carotene (vit A precursor) / lycopene / lutein / zeaxanthin, but with a unique structure.

Nature's 'orange-red maker':

The marine microalga *Haematococcus pluvialis* is the number-one producer — when stressed (strong light / hypoxia / nitrogen starvation), it dyes itself blood-red as a defenseKrill eat these algae → they get dyedSalmon / trout / red trout eat krill → flesh turns pink — this is the chemical root of why salmon is pinkFlamingos / scarlet ibis eat astaxanthin-containing algae → feathers turn pink
Animals cannot synthesize it — humans and most animals get it via the food chain, with no endogenous synthesis pathway. This is the complete opposite of vitamin D (endogenous synthesis).

Typical human intake:

A serving of wild salmon (~150 g) contains ~0.5–1 mg astaxanthinA serving of farmed salmon ~0.1–0.5 mg (added via feed)A typical Chinese diet: close to 0 mg/dayTypical supplement dose: 4–12 mg/day — far above food levels (10–100×)

Read story

Educational content, not medical advice — consult a clinician.