Be prepared to be patient in the name of clear skin. “It can take three to six months of tretinoin use before one starts to see results whether for acne clear up or skin clarity and “purging” lasts three to six weeks,” says Dr. Halim.
In general, retinol is one of the more gentle varieties of retinoids, however, “if you're going to experience shedding it will begin on day three to five of daily night time use, and this usually continues for about five to 10 days depending on your skin type and the percentage of retinol you've used,” adds Ejikeme.
Generally speaking, dermatologists say purging should be over within four to six weeks of starting a new skin care regimen. If your purge lasts longer than six weeks, consult your dermatologist. It could be that you need to adjust the dosage and/or frequency of application.
"You can definitely prevent [the retinoid uglies]," he says. "First, make sure it's applied to dry skin. Apply every third night for the first two weeks, then every second night for the next week, and so on so that your skin can get acclimated to it.
You've probably already guessed that it varies from person to person. Some people may be lucky and only experience a purge that lasts for a couple weeks, while others might go through an adjustment period that lasts a few weeks to a month.
Tretinoin speeds up the skin cell turnover process, causing some initial breakouts, drying, and peeling. These symptoms eventually go away and leave clearer skin underneath.
During the first 3 weeks you are using tretinoin, your skin may become irritated. Also, your acne may seem to get worse before it gets better. It may take longer than 12 weeks before you notice full improvement of your acne, even if you use the medicine every day.
These unwanted effects — particularly skin dryness and acne breakouts — are widely referred to as the “tretinoin purge.” While they don't affect everyone, many tretinoin users experience some degree of purge effects during the first several weeks of treatment.
In theory, retinol makes your skin cell turnover faster. The increased cell turnover temporarily sloughs off more dead skin cells. This creates a lag time before new, healthy cells come to the surface of your skin. Your new skin is exposed before it's ready, and redness or discoloration, and irritation is the result.
Skin purging typically looks like tiny red bumps on the skin that are painful to touch. They are often accompanied by whiteheads or blackheads. It can also cause your skin to become flaky. The flare ups caused by purging have a shorter lifespan than a breakout.
Tretinoin can also be used to decrease the appearance of acne scarring. Since tretinoin speeds up cell turnover on your skin, it can encourage new cell growth at the site of your scarring. Tretinoin in several forms has been tested successfully as an effective way to treat acne scars.
Purging is a sign that the product is working and you should continue with the treatment as prescribed. After a few weeks of purging, your skin and acne will have noticeably improved. Breaking out is when your skin is reacting because it is sensitive to something in the new product.
After 4 – 6 weeks
After 4-6 weeks, your skin will get used to tretinoin and will begin to be noticeably smoother and more even. A lot of the initial irritation will settle down and true “retinization” of your skin is in full force.
Purging is slightly different, appearing on the skin mostly as blackheads or small skin-coloured bumps just under the surface of the skin. But it is also possible for purging to cause similar spots to a breakout, too.
Retinoids help mitigate those issues in a variety of ways. They thicken the epidermis through increased cell proliferation at the top level. They increase the production of natural chemicals (such as hyaluronic acid) in your skin that keep it plump and moist.
Skin purging occurs because newly introduced skincare ingredients increase the rate at which your skin cells turnover, causing you to shed more dead skin cells than usual. This, in turn, pushes layers of dead skin off and also brings clogged pores to the surface, Chang says, resulting in more breakouts.
Retinoids such as Tretinoin, acids such as salicylic, and benzoyl peroxide are just a few of the products that cause purging. These products contain active ingredients that increase the skin cell turnover rate, therefore causing your skin to purge.
Skin Discoloration
Tretinoin can fade spots on the face, evening out your skin tone and helping to hide the blotchy coloration that can affect many people's facial skin. In some cases, however, tretinoin can also cause small patches of skin to darken, producing noticeable skin discoloration.
Peeling, redness, and irritation are common onset reactions for some people when they first start to use retinol. Some reactions get so bad that the common term used to describe the list of effects has been dubbed the “retinol uglies”. Note from a skincare expert: Many things in life get worse before they get better.
Purging can last for anything from one or two weeks to one or two months. Breakouts can last a while; there is no time period that indicates when the breakouts will go away. The cell turnover speed is usual.
A sulfate-free cleanser, a skin calming moisturiser and a physical sunscreen during the day should treat the problem soon and take your skin back to its healthy and clear state. Also, during this time continue the product that's making your skin purge, don't worry it won't get worse.
“Purging is neither good nor bad. It can happen after using excellent products but, equally, it also frequently occurs when the skin barrier is compromised prior to starting with a product or treatment.
Tretinoin Does Not “Bleach” Your Skin
Contrary to popular belief, tretinoin is not a “bleaching agent” or medicine designed specifically to lighten your skin tone. While tretinoin can even out patches of hyperpigmentation and cause a mild change in your skin tone, it doesn't affect melanin synthesis.
After three months, 94 percent of the patients experienced a significant decrease in the depth of their acne scars. The researchers concluded that tretinoin is an “effective, noninvasive treatment of atrophic acne scars without causing disturbing side-effects.”
"That's something people often underestimate," Sinclair said. "It takes four to five days for a pimple to fully form and then another four to five days for it to fully go away. It's not as quick as people think."