Retin-A Micro is available in four strengths: 0.1%, 0.08%, 0.06% and 0.04%.
Additionally, Retin-A comes in a variety of strengths such as 0.25% (the lowest), 0.5% and 1.0 % (the strongest). You'll definitely want to start using the lowest dose once or twice a week.
“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. Rogers says it's best to start with the lowest concentration before moving up.
Retin-A Micro is a costlier, time-released version that is available only as a gel. It is less likely to cause irritation and dryness and can be applied immediately after cleansing. However, it may not be as effective as Retin-A cream for anti-aging treatments and may be better suited than creams for oilier skin types.
Retin-A Micro (tretinoin gel) microsphere, 0.1% and 0.04%, should be applied once a day, in the evening, to the skin where acne lesions appear, using enough to cover the entire affected area lightly.
It might take two or three weeks of using Retin-A (treitinoin) to see any benefits. However, in some cases, it may take six weeks or more.
Retin-A and Retin-A Micro are both brand names for tretinoin. The big difference between these two medications is how they deliver the tretinoin to your skin. Retin-A Micro delivers the medication more slowly, over time, so it's less irritating than Retin-A.
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.
Tretinoin (aka retinoic acid) is a prescription retinoid you can get from a doctor. It's 20 times more potent than OTC retinol and achieves faster results 1.
Retinaldehyde has been shown to be effective in improving fine and deep wrinkles. The evidence supporting its use is based on larger scale studies of the previously mentioned retinoids. Retinaldehyde is well tolerated by patients, even at higher concentrations, unlike tretinoin, which can cause significant irritation.
025% tretinoin cream produced similar results in overall improvement in photoaging of the face, the stronger concentration of tretinoin had “statistically significantly greater” side effects, including redness and skin peeling.
If you have mild or moderate acne, both tretinoin and adapalene are likely to produce a lasting, significant improvement if used consistently. On the whole, studies comparing tretinoin and adapalene typically find that tretinoin is slightly more effective as an acne treatment.
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.
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.
Retinaldehyde, also known as “retinal” — not to be confused with retinol — is the strongest of the over-the-counter retinoids. One step closer to retinoic acid on the conversion scale, it only takes one step for it to convert and become active, making it more potent than the aforementioned retinyl esters and retinol.
The Drunk Elephant A-Passioni Retinol Cream formula contains a strong 1% concentration of retinol, which is one of the highest concentrations you can get over-the-counter.
This medication is used to treat acne. It may decrease the number and severity of acne pimples and promote quick healing of pimples that do develop. Tretinoin belongs to a class of medications called retinoids. It works by affecting the growth of skin cells.
1. SkinCeuticals Retinol 1.0 Maximum Strength Refining Night Cream. Formulated with the highest concentration of 1.0% pure retinol and botanical extracts, this cream is enhanced with the latest stabilization and delivery technologies to preserve retinol potency and ensure maximum efficacy and stability.
3-5 DAYS BEFORE PROCEDURE: Avoid topical products such as Tretinoin (Retin-A), Retinols, Retinoids, Glycolic Acid, Alpha Hydroxy Acid, Vitamin C, or any “anti-aging” products. Also, avoid waxing, bleaching, tweezing, or the use of hair removal cream on the area to be treated.
Tazarotene 0.1% gel (once daily) is more effective than tretinoin 0.025% gel (once daily) in reducing the numbers of papules and open comedones, and achieves a more rapid reduction in pustules in mild to moderate facial acne. Alternate-day tazarotene 0.1% gel is as effective as once-daily adapalene 0.1% gel.
High-strength retinol – 0.3%-1%
Those with stubborn skin concerns, like deep wrinkles and pronounced uneven skin tone may want to consider a high percentage retinol cream, serum or treatment. Look for those with a retinol percentage of between 0.3% and 1%.
The results showed that, after eight weeks, the retinol moisturizer was significantly more efficacious than the vehicle in improving lines and wrinkles, pigmentation, elasticity, firmness and overall photodamage. Many of these differences were significant at week 4, with a progressive improvement to week 8.
This medication is used to treat acne. It may decrease the number and severity of acne pimples and promote quick healing of pimples that do develop. Tretinoin belongs to a class of medications called retinoids.
Tretinoin micro (Retin-A Micro) is an expensive drug used on the skin to treat mild to moderate acne. This drug is less popular than comparable drugs. It is available in brand and generic versions.
"You can use tretinoin or [over-the-counter] retinols forever."