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HomeBlogSpotlight: What is Vitamin A?


Vitamin A is a fat-soluble vitamin related to retinol and beta carotene.

What Does Vitamin A Do?

Vitamin A is essential for:

  • Immune system
  • Skin health (avoids infection and inflammation)
  • Vision
  • Healing

How Can You Take Vitamin A?

You can apply Vitamin A topically as Retinol or Retin A. Retinoids applied topically on the skin are potent antioxidants, helping the skin exfoliate and increase collagen production.

You can also consume it. High sources are found in liver, fish, eggs, and dairy products. Vitamin A is also found in green leafy vegetables, orange and yellow vegetables, tomatoes, and fruit. As Vitamin A is stored in fat, it is best absorbed with fatty foods.

You can take supplements. But be careful — as it is stored in fat, you can go for months without suffering low levels. If you have too much Vitamin A, it can present as nervous system effects, liver issues, fatigue, or muscle weakness.

How can Biohackr Health help?

Know your levels. When optimizing your nutrient levels, you should not do it blindly. More is not always better. Undergo our micronutrient testing to find out your Vitmain A levels (and the levels of a huge host of other vitamins, micronutrients, and amino acids).

Supplement. This can be done with our IV or oral supplements.

Use Retinol topically. We love our retinol product. Topical retinols are the gold standard of skincare. See more information in our blogs.


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