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Home»Skin Care»Retinol vs. Retinaldehyde: Which is better for aging skin?
Skin Care

Retinol vs. Retinaldehyde: Which is better for aging skin?

healthtostBy healthtostMay 26, 2024No Comments7 Mins Read
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Retinol Vs. Retinaldehyde: Which Is Better For Aging Skin?
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Retinol and retinaldehyde stand out for their proven effectiveness and unique benefits for fighting wrinkles, evening skin tone and reversing sun damage that begins to set in with age.

But, between retinol and retinaldehyde, which should you choose to correct the skin’s aging process?

Should you choose the tried and tested retinol, which has been around for a long time, or the newer and milder retinaldehyde, which promises faster results?

This article delves into these two specific retinoids, shedding light on their mechanisms, benefits, and considerations, offering insight into how they can be harnessed to maintain skin’s youthful glow over time.

What is retinol?

Retinol is a vitamin A derivative and one of the body’s essential nutrients for boosting cell turnover and collagen production.

Once applied to the skin, retinol will attach to retinoid receptors deeper in the skin and initiate actions that will affect the growth and differentiation of skin cells in various layers of the epidermis.

These actions include stimulating the production of new cells and increasing the rate at which new cells replace old and damaged cells.

This accelerated cell renewal process helps improve skin tone and texture, making it appear smoother and more even.

In addition, retinol also encourages the fibroblast cells in the skin to produce more collagen, which helps strengthen the skin’s structural matrix and reduces the appearance of fine lines and wrinkles, making the skin appear firmer and more elastic.

Finally, retinol’s antioxidant properties help neutralize free radicals, protecting the skin from damage caused by environmental stressors such as UV radiation and pollution.

The benefits of using retinol for aging skin

  • Reduced lines and wrinkles.
  • Increased firmness and elasticity.
  • Smoother texture.
  • Brighter and more even skin.
  • Refined resources.

What is Retinaldehyde?

Retinaldehydealso known as retinol (not to be confused with retinol), is another vitamin A derivative and a component that works in the lower layers of the skin, where it is converted to retinoic acid by an enzyme called retinaldehyde dehydrogenases (RALDH).

This conversion will prompt more retinoic acid to contact retinoid receptors within the skin’s dermis and epidermis, initiating cell renewal.

Unlike retinol, which requires two conversion steps to become retinoic acid, retinaldehyde’s proximity to the active form of vitamin A allows it to deliver results faster and more effectively, while maintaining a lower risk of irritation compared to stronger retinoids such as the tretinoin.

The benefits of using retinaldehyde for aging skin

  • Enhanced collagen production.
  • Reduced appearance of fine lines and wrinkles.
  • Improved skin texture and tone.
  • Increased brightness and shine.

Retinol vs. Retinaldehyde for Aging Skin: Which is Better?

Retinol vs. Retinaldehyde for aging skin

Effectiveness in the treatment of skin aging signs

Retinol: Highly effective in stimulating collagen production, accelerating cell turnover and improving the appearance of fine lines and wrinkles.

Retinaldehyde: Closest to the active form of vitamin A in the metabolic pathway, making it theoretically more potent than retinol. It offers similar benefits to retinol, but may work more effectively due to its direct conversion to retinoic acid in the skin.

In terms of effectiveness in treating signs of skin aging, retinaldehyde may have a slight advantage over retinol due to its immediate conversion to retinoic acid.

Speed ​​of Results

Retinol: It takes longer (4-12) weeks to produce visible results due to the two-step conversion process.

Retinaldehyde: In theory, it should work faster due to its closer proximity to the active form of vitamin A.

However, in practice, retinaldehyde will take a similar amount of time to show results.

All retinoids usually take anywhere from four to twelve weeks to show skin improvement. Therefore, retinol and retinaldehyde will likely take a similar amount of time to produce visible results.

Durability for sensitive skin

Retinol: May irritate sensitive skin and its concentration in care products may need to be increased gradually.

Retinaldehyde: Generally better tolerated than retinol, but may cause mild irritation in some individuals.

Retinaldehyde is considered gentler on the skin than retinol, as this ingredient is only converted to retinoic acid as needed.

This means the skin can regulate the amount of active retinoic acid produced, reducing the risk of irritation.

In addition, when retinol is applied, a large part is stored in the skin and is gradually converted to retinaldehyde and then to retinoic acid.

This can lead to a build-up of retinoic acid, potentially causing irritation, especially if the skin is sensitive or unaccustomed to retinoids.

Therefore, while retinaldehyde is closer to the active form (retinoic acid), it does not automatically mean it is more irritating, as the skin’s ability to control the conversion process plays an important role in minimizing irritation.

Side effects

Retinol: Dryness, redness, peeling and increased sensitivity to the sun.

Retinaldehyde: Fewer side effects than retinol, but may cause mild irritation, dryness and peeling in some people.

Both retinol and retinaldehyde can cause dryness, redness, peeling, and sensitivity to sunlight, especially at first while the skin adjusts to the active ingredient.

However, due to its more immediate conversion to retinoic acid and lower concentration in topical products, retinaldehyde may cause fewer side effects than retinol.

Ultimately, how quickly your skin adapts to retinol and retinaldehyde will depend on your skin’s sensitivity and how well it tolerates the ingredient, as well as your skin care routine and, in particular, your use of sunscreen.

Stability in skin care products

Retinol: Stable and easy to formulate, it can be found in many skin care products, including creams, serums and oils.

Retinaldehyde: It is not as stable as retinol and is notoriously difficult to prescribe, making it less common in skin care products.

Retinaldehyde is generally less stable than retinol and can be difficult to incorporate into skin care formulations.

As a result, it is not found as often in skin care products, and when it is included, it may be in lower concentrations compared to retinol.

This may limit its effectiveness compared to retinol, especially for those seeking stronger antiaging benefits.

However, it can be a good stepping stone for those with sensitive skin, who can then gradually switch to a stronger retinoid for more significant results.



Retinol is the superior anti-aging ingredient compared to retinaldehyde due to its proven effectiveness, stability and wide availability in a variety of skin care products.

Considering that both retinol and retinaldehyde are effective forms of vitamin A in skin care, the key difference between the two is their conversion process.

Retinol requires two conversions to become retinoic acid, while retinaldehyde only needs one.

This theoretically makes retinaldehyde more effective than retinol.

However, in practice, both ingredients take a similar amount of time to show visible results, can cause initial side effects such as dryness, flaking and irritation, and provide the same benefits for aging skin, including minimizing the appearance of lines and wrinkles. balances the skin and improves texture.

Additionally, considering that retinaldehyde is a less stable ingredient and is usually available in lower concentrations in skin care products, it may not be as effective as retinol for more significant anti-aging benefits, and its power is somewhat limited when it comes to the treatment of more serious symptoms of skin aging.

While retinaldehyde may be a good choice for people with sensitive skin and beginners, retinol remains the gold standard in antiaging skin care due to its proven effectiveness, stability, and wide availability in a variety of skin care products.

In addition, retinol also comes in different strengths and can be increased gradually to minimize initial side effects, making it suitable for most skin types and a versatile ingredient in any skin care routine.

So, if you’re looking for an effective antiaging solution, retinol is arguably the most effective option.

The post Retinol vs. Retinaldehyde: Which is better for aging skin? appeared first on The Skin Care Culture.

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