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Old 07-24-2008, 03:40 AM   #6
StellaBlue
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Re: Is it ok to use a moisturizer about an hour after applying Retin-A?

Oh and I looked up the difference between retinol and retin-a .
So in case someone else comes along wondering what the difference is too.
Here's what I found:

Quote:
Retinol vs. RetinA
By: Dov Oshri

Many anti-wrinkle and skin rejuvenation products contain retinol, which is a form of vitamin A. Many people confuse retinol with Retin A, which is a brand of tretinoin also referred to as trans-retinoic acid or simply retinoic acid.

Retinol and retinoic acid are related but distinctly different. Retinol and other forms of vitamin A, such as retinal and retinyl palmitate, do not have much direct effect on the skin. They first need to be converted by special enzymes into the active metabolite, retinoic acid. Only retinoic acid directly affects skin cells and helps reduce some signs of aging.

In theory, you should be able to apply retinol to the skin, wait till it gets converted to retinoic acid, and eventually get the known skin benefits of the latter. In reality, the conversion rate is low and varies greatly among individuals.

Besides, when exposed to air either during storage or use, much retinol may get oxidized or degraded even before it can become available for conversion to retinoic acid in the skin.

As a result, significantly less people respond to retinol creams than to retinoic acid (tretinoin, Retin A), and the degree of response tends to be less too.

It is true that retinol products tend to have fewer side-effects than retinoic acid (tretinoin, Retin A). The reason is the same: lower biological activity of retinol due to slow conversion and, possibly, degradation.

Notably, some companies have developed stabilized high-concentration retinol formulas that seem to be more effective than run-of-the-mill retinol products. However, high concentrations of retinol can be almost as irritating to the skin as retinoic acid. (See our article on active retinol for more about such products.)

Bottom line
In my program ?How to Astonish Everyone with Wrinkle Free Young Look? which is a bonus with ?Change Your Body and Be Admired? I recommended Retinol as your first choice. This is what I used for the last 2 years especially because the side effects of Retin A.

But after further research I changed to Retin A, with the same procedure as in my program (before bed time, after ALA and before moisturizer).

Retin A (Renova and other brands) appears to provide a better shot at eliminating fine lines and reducing wrinkles than even the best retinol formulations. (Not to mention many virtually ineffective retinol products.)

Retin A users who experience skin irritation and/or chronic peeling could try to eliminate the side effects by reducing the concentration and/or frequency of application. If that fails, a well-selected retinol product may be worth a try.

In some countries, retinoic acid (tretinoin, Retin A, Renova) is available only with a prescription by a physician. So a trip to the doctor may be necessary.

Caution: neither Retin A nor retinol should be used in the event of continuing chronic side-effects.
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