Vitamin A-derived retinoids are considered the gold standard for anti-aging. While prescription-strength retinoids can have a more dramatic effect on skin, over the counter products are less irritating. Here are 20 products containing retinol, retinyl palmitate, and retinaldehyde that can be purchased without a prescription and are clinically proven to be effective with continued use. For more information about retinoids, please visit my post Beauty Ingredients Demystified – Retinoids.
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