SK Renewal 40 ― Advanced Keratolytic Cream For Rough, Raised Seborrheic Keratoses

Yes. The formula is developed for all skin types, pairing keratolytic ingredients—urea and salicylic acid—with soothing aloe vera, coconut oil, and vitamin E to help protect the skin during treatment.

Apply it directly to affected spots, avoiding healthy surrounding skin. Never use it on your face. Begin with one application daily, then increase to twice daily depending on your skin’s response. If your skin is particularly sensitive or reactive, patch test a small area first.

This depends on the number of spots you’re treating. A jar may last around two months when used on a few neck patches, but treating spots across your neck, chest, back, and arms will use it up sooner.

Most customers initially apply it once daily while their skin adjusts, making one jar last approximately two months. After noticing results and increasing to twice-daily use, a jar typically lasts about one month.

Yes, but avoid applying strong actives, such as retinoids or acid treatments, to the same area at the same time. Combining them can cause excessive exfoliation in that spot.

You can continue using those products elsewhere on your body. Introduce SK Renewal 40 gradually, give your skin time to adapt, and follow each application with moisturizer on the surrounding skin.

Start with less sensitive areas, such as your neck, chest, back, or arms. Because 40% urea is a potent keratolytic, thinner skin around the underarms and bikini line may react more readily.

Before applying it to a sensitive area, patch test a small spot and wait 24 hours. If no irritation develops, begin using it once every other day. Allow your skin to adjust before increasing the frequency. Stop applying it to that area if you notice burning or redness.

Do not use it on your face.

No—it’s not too late. The process works the same way at 75 as it does at 45. Older spots have simply accumulated over a longer period, so they may need more time to soften and fade.

Some of our most striking before-and-after results come from women in their 70s who had spent years believing nothing could help. Your age alone does not make your skin an exception.

SK Renewal 40 is intended for adults of any age with seborrheic keratoses. Most of our customers are 35–70, when these growths often become more numerous and noticeable. Some customers in their late 20s and early 30s also use it after first developing spots during pregnancy or hormonal changes.

Provided your spots have been identified as seborrheic keratoses rather than another condition, age is not a restriction. We do not recommend this product for anyone under 18.

No. The formula contains 2% salicylic acid—the same gentle concentration commonly used in everyday acne cleansers. Urea is not an acid, even at 40%; it is a compound naturally produced by your body. The process involves no freezing, burning, or scabbing.

You may notice mild tingling during the first few applications as your skin adjusts. This is normal and generally settles within a few days. For very sensitive skin, start with one application every other day and gradually increase the frequency. Stop using it on any area where redness or discomfort continues.

No. This is a key distinction from professional removal methods. Freezing, burning, and scraping remove growths by damaging them from the outside, which can leave scars, darker marks, or lighter patches.

SK Renewal 40 instead softens keratin from within, allowing your body to naturally shed the loosened cells. There is no wound, scab, or recovery period. Because your skin clears the loosened cells itself, the risk of scarring is virtually zero.