A couple of questions

Why is retinol bad for you?

The more retinol you put on, the poorer the barrier function becomes," he said. "This is why a lot of people feel that their skin is very sensitive and experience peeling, flaking, and irritation." One of the main side effects of using retinol is that it makes your skin more sensitive to UV sunlight, in particular.13-Jun-2018

Why you shouldn’t use retinol?

While certain side effects, such as mild irritation, dryness, and sun sensitivity are normal as your skin adjusts to the active ingredient, intense flaking, redness, and burning are not—and those with especially sensitive skin, or who struggle with conditions like rosacea or eczema, should be wary of retinol or shy

What are the long term effects of retinol?

Chronic toxicities from long term therapy with retinoids may result in skeletal abnormalities, usually mimicking diffuse idiopathic hyperostosis syndrome. Furthermore, the chronic use of retinoids in children may inhibit their growth due to premature epiphyseal closure.

Is there a downside to retinol?

The most common side effects I see with patients are redness, dry and scaly skin and itching or burning. In more extreme cases, people who already have naturally dry skin can sometimes get nosebleeds and cracking at the sides of the mouth. Retinoids also initially increase the skin's sensitivity to ultraviolet light.

Can retinol ruin my skin?

Despite dermatologists describing retinol as a skin-care star, it can come with an unpleasant side effect: retinol burn. Also known as retinol irritation, it's essentially what happens when your face can't tolerate the powerful ingredient and subsequently devolves into a flaky, peeling, red mess.

Is retinol cancerous?

Again, there is no definitive evidence that topical retinoids lead to cancer or reproductive toxicity, but the evidence we do have is pretty much on par with that of parabens.

Does retinol make you age faster?

No, it's not. It's just an adjustment process. For the record, no study proved that there's been any skin damage or signs of 'faster aging' caused solely by retinol.

Is retinol damage permanent?

Can Retinol Damage the Skin? You may have heard that extended retinol use can cause the skin to thin and the skin barrier to degrade as a result of increased cell turnover, but Shah says that's a myth. You don't need to worry about retinol causing permanent damage, Schlessinger says.