Retinoic Acid. As mentioned earlier, retinoic acid is the most potent form of retinoids. “This is the end point molecule that is biologically active on skin, and is therefore the strongest,” says Dr. Rabach.
Percentages of 0.01% retinol or greater are proven to be effective at improving multiple signs of ageing, reducing pore size and improving the overall health of your skin.
Tazarotene. This is the most powerful retinoid, available by prescription only. If your skin tolerates retinoid products well and you're looking for enhanced results, you may want to consider this option. Adapalene.
Hyaluronic acid is best if they're looking to moisturize dry skin, while retinol works better by encouraging better skin by boosting collagen production. They have several benefits that can work in tandem for better results, though patients need to be careful with the exact formulations they use.
“This is different from traditional retinol because it causes less skin dryness, irritation, and flaking, which makes the product more tolerable.” This technology also creates a more stable product with a prolonged shelf-life, adds Dr. Marie V.
25%, which may not give you the full benefits of retinol. “Studies suggest you need to use at least 0.25% retinol or 0.025% tretinoin to be effective, so I recommend using a product that specifies the percentage.” When choosing a retinol product, Dr.
Tretinoin (also known as Retin-A, Renova): “This is a prescription topical retinoid. In its mildest forms, it's used for its anti-aging properties.
The truth: You can use vitamin C with retinol and retinoids. Get them as separate products so you can tailor the concentration of each and use them at the right time of day. Although vitamin C can be used day or night, it is ideal for daytime use, while retinol and retinoids should be applied at night.
Later studies evaluated Tretinoin 0.05%. While both were equally effective over a one year period, Tretinoin 0.1% was able to achieve cosmetic improvement in 6 months while 0.05% required closer to 12 months. Finally, 0.025% was compared to 0.1% and it was found that both produced similar improvements in photoaging.
In general, retinoids are stronger than retinol. They contain a higher concentration of the product, and the molecular structure of vitamin A in this form allows it to turn over skin cells at a faster rate than retinol.
0.3% – a relatively low but effective dose of retinol. "0.3% retinol is enough to give a good effect but also enough not to put the skin at risk or irritate the skin," continued Abi. "There are creams out there formulated at 1% and 2% but in my experience consumers don't always use retinol properly.
On average, it takes eight to 24 weeks of treatment for tretinoin to produce noticeable improvements in wrinkles and other signs of aging. One short study published in the Journal of Cosmetic Dermatology, which used a . 025 percent tretinoin cream, found a “statistically significant improvement” after just 84 days.
Retinal + Retinaldehyde
“Retinal is more effective than retinol and less irritating than a prescription Rx, which makes it reliable at delivering swift results,” says Cline.
For the purposes of skin care, tretinoin can be thought of as a more concentrated version of retinol. This means that tretinoin is stronger than retinol. This difference in strength can help guide your decision-making when it comes to choosing a skin care product. Your skin is affected by more than what you put on it.
The main difference between hyaluronic acid vs retinol is that hyaluronic acid is hydrating while retinol is an antioxidant that increases skin cell turnover.
Retinol is found in numerous over-the-counter (OTC) skin care products. The difference between them is depth and speed! Retin-A penetrates immediately and into deeper layers of your skin to repair instantly. Retinol takes a while to penetrate and repair.
Niacinamide is a gentle skin care ingredient that helps diminish the signs of aging, discoloration, and blemishes. Retinol has similar benefits, but it's stronger than niacinamide. It's also known to cause irritation, redness, and dry skin. Pairing the two ingredients is safe and can make retinol easier to use.
Retinoids work best if you use them daily. Specifically, they should be used at night because some types are deactivated by light and air. It's important to start slowly and allow your skin time to adjust. Using too much too quickly can cause redness, dryness, and irritation.
How long does it take to work? As with all skincare products, you should be patient with the results. 'Skin is renewed after 28 days on average, which means the new cells migrate to the surface of the skin after which time you should start seeing results,' says Dr Hayot.
ENCAPSULATED RETINOL (0.5%) AND RETINOIC ACID (0.05%) ARE EQUALLY EFFECTIVE AT PROTECTING AGAINST UV-INDUCED DAMAGE IN EPIDERM-FT TISSUES.
When using hyaluronic acid and retinol, apply retinol first, then hyaluronic acid.
Using niacinamide before retinol works well. So does combining them into one product. A 2016 study found that a product containing retinol, niacinamide, hexylresorcinol, and resveratrol improved fine lines, sallowness, wrinkling, hyperpigmentation, and skin tone.