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Discover the benefits of vitamin A for your skin

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Vitamin A, retinol, retinoids – what's the difference? Here's what they do, how they differ and how to choose the right one for your skin

Summary

1What is vitamin A?

Vitamin A is an essential fat-soluble vitamin that supports many important functions throughout the body.

2How does vitamin A benefit the skin?

Vitamin A is known to support the skin's natural renewal processes, helping improve the appearance of skin texture, radiance and overall complexion.

3Can you have too much vitamin A?

Yes. Taking excessive amounts of vitamin A supplements over long periods can lead to toxicity because the vitamin is stored in the liver.

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Vitamin A has earned its reputation as one of skincare's true multitaskers. Whether you're looking to support healthy-looking skin, reduce the appearance of fine lines or keep blemishes under control, vitamin A plays an important role both inside the body and in your skincare routine. But here's where things often get confusing. Is vitamin A the same as retinol? What are retinoids? And do you need to get it from your diet, your skincare products or both?

What is vitamin A?

Vitamin A is an essential fat-soluble vitamin that supports many important functions throughout the body.1,2 It's involved in healthy visionimmune function, cell growth and the maintenance of the skin. When it comes to skin health, vitamin A contributes to the maintenance of normal skin. It helps regulate the growth and renewal of skin cells, supporting the skin's normal structure and function.3 Because your body cannot produce vitamin A on its own, it needs to come from your diet (or supplements).4 Topical vitamin A derivatives, such as retinol, can also be applied directly to the skin through skincare products.5

Vitamin A, retinol and retinoids: What's the difference?

Vitamin A is the nutrient, retinoids are a family of compounds related to vitamin A that are widely used in skincare, and retinol is one of the most common retinoids you'll find in over-the-counter skincare products.

Vitamin A

Vitamin A is the umbrella term for a group of compounds that support many functions in the body, including maintaining healthy skin.6
 

Retinoids

Retinoids are compounds related to vitamin A that are used in skincare and medicine. This group includes both prescription-only treatments and over-the-counter cosmetic ingredients.7 Prescription retinoids, such as tretinoin, are generally more potent and are commonly prescribed for acne or signs of photoaging.8,9
 

Retinol

Retinol is one of the most popular over-the-counter retinoids found in skincare.10 If you've shopped for retinol before, you've probably noticed products labelled with different percentages/strengths – such as 0.1%, 0.3%, 0.5%, or 1%. Lower strengths are generally a good starting point, while higher strengths are typically better suited to people whose skin has already built up a tolerance.

Once applied, enzymes in the skin convert retinol into its active form (retinoic acid) through several steps, making it effective while generally being gentler than prescription retinoids.7 This makes retinol a popular choice for people looking to improve skin texture, plumpness and reduce the appearance of fine lines over time.11
 

How does vitamin A benefit the skin?

Supports the skin’s renewal process
Healthy skin continually renews itself. When applied topically, Vitamin A is known to support the skin's natural renewal processes,4 helping to improve the appearance of skin texture, radiance and overall complexion.5
Helps improve the appearance of fine lines
As we age, collagen production naturally slows down.12,13 Topical retinol has been widely studied for its ability to support collagen, helping to improve skin and soften the appearance of fine lines and wrinkles with consistent use.11
Supports blemish-prone skin
Retinol helps prevent dead skin cells from building up inside pores, making it a popular skincare ingredient for people with oily or blemish-prone skin.5 It can help minimise the appearance of blocked pores and support clearer-looking skin.5
Improves skin texture 
Regular use of vitamin A skincare can help smooth rough-feeling skin and improve overall texture, making skin appear more refined over time.14
Supports the skin barrier
Vitamin A is known to support the skin's natural renewal processes, and supports the skin's natural barrier, helping skin feel hydrated and soft.15
kale and avocado salad

Where does vitamin A come from?

There are two main dietary forms of vitamin A:

Preformed vitamin A (retinol)

This type comes from animal-based foods and is already in a form that the body can use. Good sources include:6
  • liver
  • oily fish, including salmon
  • eggs
  • milk
  • cheese
  • butter
  • yoghurt
  • cod liver oil

Provitamin A carotenoids

These are found in colourful fruits and vegetables. Your body converts them into vitamin A as needed. Foods rich in carotenoids include:16
  • carrots
  • sweet potatoes
  • spinach
  • kale
  • cabbage
  • butternut squash
  • red peppers
  • mango
  • apricots
  • cantaloupe melon

How much vitamin A do you need?

Most people can obtain enough vitamin A through a balanced diet without needing to take supplements – as it’s fat-soluble, it’s best taken with a meal, especially one that contains some fat, as this helps your body absorb it more effectively. Excess amounts are stored in the liver rather than being excreted, this means it's important not to exceed recommended amounts, particularly if taking supplements. According to NHS guidance, the recommended daily intake for adults is:

Men: 700 micrograms (0.7mg)17
Women: 600 micrograms (0.6mg)17

What happens if you don't get enough vitamin A?

Vitamin A deficiency is uncommon in the UK but can occur in certain circumstances. If you think you may have a deficiency, it's best to speak with your GP or another healthcare professional before taking supplements. Low vitamin A levels may contribute to:
  • dry skin
  • dry eyes18
  • poor night vision18
  • slower wound healing
  • increased susceptibility to infections18

Can you have too much vitamin A?

Yes. Taking excessive amounts of vitamin A supplements over long periods can lead to toxicity because the vitamin is stored in the liver. Pregnant women should avoid high-dose vitamin A supplements unless specifically advised by a healthcare professional. Too much vitamin A may cause symptoms like:
  • headaches19
  • vision changes
  • weakened bones17
  • dry or peeling skin19
  • nausea1

Vitamin A skincare: choosing the right product

There are now plenty of vitamin A skincare products available, making it easier than ever to find one suited to your skin type. If you're new to retinol, start with a lower-strength formula before gradually increasing the strength as your skin builds tolerance. Popular options include:

Vitamin A FAQs

Can I use retinol every day?

Once your skin has adjusted, many people can use retinol nightly. However, frequency depends on your skin type, the product strength and how well your skin tolerates it.
 

Can I use vitamin C and retinol together?

Many people use both ingredients as part of their skincare routine. Vitamin C is often applied in the morning, while retinol is typically used in the evening to help reduce the chance of irritation.
 

Should I moisturise after retinol?

Yes. Applying a moisturiser after retinol can help support the skin barrier and reduce dryness, particularly during the first few weeks.
 

The final say

Vitamin A is one of the most well-researched nutrients for supporting healthy skin. Eating a balanced diet rich in colourful vegetables and vitamin A-containing foods helps support your skin from within – retinol skincare can complement this by supporting the skin’s normal renewal process and improving the appearance of fine lines, uneven texture and blemishes over time. If you're just beginning your retinol journey, head over to our top retinol serum picks, choose a gentle formulation, introduce it gradually and always pair it with a daily SPF and moisturiser.
Disclaimer – This article provides informational advice and is not a substitute for medical care. Working with experts for accuracy, we take great care to ensure the information is up-to-date and relevant. However, you should always consult your GP or healthcare professional before using supplements or alternative products, particularly if you have medical conditions or are under supervision.

Sources

1. National Institutes of Health. Office of Dietary Supplements - Vitamin A [Internet]. National Institutes Of Health. 2022 [cited 2026 July 20]. Available from: https://ods.od.nih.gov/factsheets/VitaminA-Consumer/
2. NHS . Vitamin A - Vitamins and minerals [Internet]. NHS. 2020 Aug [cited 2026 July 20]. Available from: https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-a/
3. VanBuren CA, Everts HB. Vitamin A in Skin and Hair: An Update. Nutrients. 2022 July 19;14(14):2952.
4. Gilbert C. What is vitamin A and why do we need it? Community Eye Health [Internet]. 2024 [cited 2026 July 20];26(84):65. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC3936685/
5. Zasada M, Budzisz E. Retinoids: active molecules influencing skin structure formation in cosmetic and dermatological treatments. Advances in Dermatology and Allergology [Internet]. 2019 Aug [cited 2026 July 20];36(4):392–7. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6791161/
6. National Institutes of Health. Vitamin A and Carotenoids [Internet]. Nih.gov. National Institutes of Health; 2023 [cited 2026 July 20]. Available from: https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/
7. Milosheska D, Roškar R. Use of Retinoids in Topical Antiaging Treatments: A Focused Review of Clinical Evidence for Conventional and Nanoformulations. Advances in Therapy [Internet]. 2022 Oct 11 [cited 2026 July 20];39(12):5351–75. Available from: https://link.springer.com/article/10.1007/s12325-022-02319-7
8. Sitohang IBS, Makes WI, Sandora N, Suryanegara J. Topical tretinoin for treating photoaging: A systematic review of randomized controlled trials. International Journal of Women’s Dermatology. 2022 Mar;8(1):e003.
9. Mukherjee S, Date A, Patravale V, Korting HC, Roeder A, Weindl G. Retinoids in the treatment of skin aging: an overview of clinical efficacy and safety. Clinical Interventions in Aging. 2006 Dec;1(4):327–48.
10. Spierings NMK. Evidence for the Efficacy of Over-the-counter Vitamin A Cosmetic Products in the Improvement of Facial Skin Aging: A Systematic Review. The Journal of Clinical and Aesthetic Dermatology [Internet]. 2021 Sept [cited 2026 July 20];14(9):33. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC8675340/
11. Quan T. Human Skin Aging and the Anti-Aging Properties of Retinol. Biomolecules [Internet]. 2023 Nov 1 [cited 2026 July 20];13(11):1614. Available from: https://www.mdpi.com/2218-273X/13/11/1614
12. Varani J, Dame MK, Rittie L, Fligiel SEG, Kang S, Fisher GJ, et al. Decreased Collagen Production in Chronologically Aged Skin. The American Journal of Pathology [Internet]. 2006 June 1 [cited 2026 July 20];168(6):1861–8. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1606623/
13. Al-Atif H. Collagen Supplements for Aging and Wrinkles: a Paradigm Shift in the Field of Dermatology and Cosmetics. Dermatology Practical & Conceptual [Internet]. 2022 Feb 2 [cited 2026 July 20];12(1):e2022018. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8824545/
14. Kafi R, Kwak HSR, Schumacher WE, Cho S, Hanft VN, Hamilton TA, et al. Improvement of Naturally Aged Skin With Vitamin A (Retinol). Archives of Dermatology. 2007 May 1;143(5).
15. Roche FC, Harris-Tryon TA. Illuminating the Role of Vitamin A in Skin Innate Immunity and the Skin Microbiome: A Narrative Review. Nutrients [Internet]. 2021 Jan 21 [cited 2026 July 20];13(2):302. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7909803/
16. Saini RK, Prasad P, Lokesh V, Shang X, Shin J, Keum YS, et al. Carotenoids: Dietary Sources, Extraction, Encapsulation, Bioavailability, and Health Benefits—A Review of Recent Advancements. Antioxidants. 2022 Apr 18;11(4):795.
17. NHS . Vitamin A - Vitamins and minerals [Internet]. NHS. 2020 Aug [cited 2026 July 20]. Available from: https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-a/
18. World Health Organization. Vitamin A deficiency [Internet]. World Health Organization. 2009 [cited 2026 July 20]. Available from: https://www.who.int/data/nutrition/nlis/info/vitamin-a-deficiency
19. Olson JM, Goyal A. Vitamin A Toxicity [Internet]. PubMed. Treasure Island (FL): StatPearls Publishing; 2023 [cited 2026 July 20]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK532916/
 
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