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Retinal rules, part 1: With 4,000+ types of retinoids, here’s how to confidently choose the right one for you

What’s your retin-type: A or O? Confused? Keep reading.

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Both retinAL (with an A) and retinOL (with an O) are types of vitamin-A derivatives known for their smoothing and rejuvenating benefits that affect the skin in different ways. How do you choose between retinal versus retinol? And what ingredients layer best? The answers depend on your skincare goals and your skin’s unique needs.

But first, what are retinol and retinal?

Both retinol and retinal are in the family of vitamin A-derived compounds known as retinoids. Retinoids are one of the most proven skincare ingredients (even the FDA acknowledged its age-defying benefits), with numerous research studies confirming their capability to support skin health, boost collagen production and fight blemishes.

Some expert medical journals have concluded that there are over 4000 compounds that are structurally related to vitamin A. But the most common retinoids you’ll find in skincare products fall into these categories:

  • Retinol
  • Retinaldehyde (AKA retinal)
  • Retinyl palmitate
  • Isotretinoin
  • Adapalene
  • Tazarotene
  • Tretinoin, also known as retinoic acid (available only by prescription)

How do retinoids work?

All retinoids work by increasing cell turnover and supporting collagen production. This can help improve uneven skin tone and skin texture and reduce the appearance of dark spots, fine lines and wrinkles.

However, not all retinoids are equal: Tretinoin, or retinoic acid (available via prescription only), is the most potent form because it can be absorbed and used by the skin directly. The other forms of retinoid must be converted to retinoic acid before they can start working their rejuvenating magic.

Retinal: Benefits and drawbacks

Retinal, also known as retinaldehyde, is just one step removed from retinoic acid, making it more immediately effective than other retinoids. Retinal can be ideal for taking on more intense signs of ageing on mature skin, including:

  • Deep-set static wrinkles and crepey skin
  • Sagging neck/jowls
  • Rough skin texture and uneven tone
  • Photoageing

Retinol: Benefits and drawbacks

Retinol is one step further removed from retinoic acid than retinal. Before it can get to work, it must be converted to retinaldehyde, then to retinoic acid. Although this means retinol may take a little longer to appear, it also means that retinol is less likely to cause irritation.

Retinol offers the same skin-refreshing benefits including improved skin tone, texture, skin cell turnover, hydration, pore size, blemishes and acne scars.

Retinol vs retinal: Which is best for your skin?

Both ingredients can be effective at improving the appearance of the skin, so the right choice for you will depend on your specific skin type and skin concern.

Retinal may be a good choice if you:

  • Are showing more dramatic signs of skin ageing
  • Want to reap results more quickly
  • Have more resilient skin and are looking for the most potent ingredient

Retinol may be the best fit for you if:

  • You have sensitive skin
  • Are a retinoid first-timer wanting to target less intense signs of ageing like fine lines and dullness
  • Are using a topical retinoid as proactive, rather than reactive, ingredients

Will retinoids irritate my skin?

All retinoids have the potential to cause side effects such as dry skin patches, flakiness and irritation. These side effects are typically temporary and can be managed in a few ways:

  • Talk to a dermatologist: Discuss which form would be the best fit for you, whether it’s a prescription, retinal or retinol
  • Start low and slow: Start with just a small amount of retinal and try alternating days between application. This is especially beneficial for sensitive skin types or a skin condition like rosacea or eczema
  • Create a “moisture sandwich”: Start with a moisturiser, apply your retinoid, then finish with another layer of moisturiser to help seal in hydration and prevent flakiness
  • Never skip SPF: Retinoids may increase your skin’s sensitivity to the sun. Wear a moisturiser with sunscreen with at least SPF 30 during the day when using these ingredients

Can retinal be layered with other ingredients?

Here’s a cheat sheet on how to layer (also known as sandwiching or cocktailing) your skincare products with retinal without triggering unwanted side effects:

Hyaluronic acid and retinal? YES

  • Hyaluronic acid binds water to skin and can be layered underneath retinal to offset potential dryness and boost line-plumping effects

Ceramides and retinal? YES

  • Ceramides prevent moisture loss. Layer with retinal to offset potential dryness and help keep your skin barrier strong

Vitamin C and retinal? NO

  • Guarantee the efficacy of vitamin c and retinal by using them separately: We recommend using vitamin C in the morning and retinal at night. And always follow with an SPF during the day

Benzoyl peroxide and retinal? NO

  • Benzoyl peroxide deactivates retinal’s efficacy. If you have acne-prone skin and want to keep using benzoyl peroxide while adding retinal to your regimen, use benzoyl in the morning and retinal at night

AHAs/BHAs and retinal? NO

  • Use them together and you may suffer extreme dryness, redness and burns. Don’t layer AHA and BHA, but rather stagger their application for maximum effectiveness while minimising skin damage

 

The views expressed in this article do not necessarily represent the views of Murad, and are for informational purposes only, even if the advice of physicians and medical practitioners are included. This article is not a substitute for professional medical advice, diagnosis or treatment, and should not be considered specific medical advice. 

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