SuppScore

Ingredient · Vitamin A

Vitamin A (Retinol equiv.)

Forms graded
23
Dose zones
5
Updated
1 Sept 2026

Every Vitamin A (Retinol equiv.) form, graded

23 forms scored on published absorption evidence. This is the comparison no supplement brand will publish about its own products.

  1. ×1.5Superior absorptionRetinol, Retinol Acetate, Retinyl Acetate, Retinyl Palmitate, Vitamin A (Retinyl Acetate)
  2. ×1.25Well absorbedBeta-Carotene (algae), Beta-carotene (Dunaliella salina algae), Betatene, Mixed Carotenoids
  3. ×1Reference formBeta-Carotene, Beta-Carotene (Carrot concentrate), Equivalent to Vitamin A, Vitamin A, Vitamin A (2500 IU), Vitamin A (as 1333 IU), Vitamin A (as Palmitate), Vitamin A (from alfalfa leaf powder), Vitamin A (from carrot root powder), Vitamin A (from chlorella powder), Vitamin A (from papaya fruit powder), Vitamin A (from rosemary leaf extract), Vitamin A (RE), Vitamin A (Vitamin A Palmitate)
  4. ×0.85Poor absorptionNone graded here

Multipliers are applied to each ingredient's dose score when a product is graded. How multipliers are assigned.

How much Vitamin A (Retinol equiv.) should you take?

SuppScore grades doses across evidence zones rather than against a single recommended figure. Scored information, not a recommendation.

  1. Zone 10 to 200 µg RE per dayLow dose
  2. Zone 2200 to 600 µg RE per dayGeneral maintenance dose
  3. Zone 51600 to 3000 µg RE per dayPractitioner-grade dose
  4. Zone 5600 to 1000 µg RE per dayPractitioner-grade dose
  5. Zone 51000 to 1600 µg RE per dayPractitioner-grade dose

Zones describe what the evidence supports at a dose. They are not advice on what to take, and they do not replace a conversation with a doctor or pharmacist.

What is Vitamin A (Retinol equiv.) good for?

Products containing Vitamin A (Retinol equiv.)

Scored products that list it on the label, highest scoring first. Ordering is by SuppScore only. We have no commercial relationship with any brand shown.

References

  1. academic.oup.com
  2. pubmed.ncbi.nlm.nih.gov
  3. pubmed.ncbi.nlm.nih.gov
  4. pubmed.ncbi.nlm.nih.gov
  5. pubmed.ncbi.nlm.nih.gov

Reviewed by the SuppScore advisory board

Every score on this page is computed from the SuppScore ingredient database using our published scoring rules. Our advisory board maintains those rules and the ingredient data behind them, and takes no payment from the brands whose products are scored.

Meet the advisory board · Last reviewed 1 Sept 2026

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Vitamin A (Retinol equiv.): forms, doses and evidence — SuppScore