
Actor Go Mi-ho, known for her role in the film The Outlaws, recently revealed that her extensive 11-step skincare routine ultimately backfired on her skin health.
Appearing on Channel A’s Beauty Clinic Touch Me, Go shared that her skin condition deteriorated significantly following the birth of her two sons and two subsequent rounds of rapid weight loss. The resulting skin troubles made it difficult for her to face the camera, even when modeling opportunities arose.
In an attempt to restore her complexion, Go stocked her vanity with an array of functional cosmetics and applied them in a meticulous, step-by-step regimen. However, a dermatologist who examined her skin described the routine as a "cosmetics buffet," warning that overloading products was actively damaging her skin barrier. Even beneficial ingredients can cause severe irritation when used in excessive quantities or combinations. In particular, layering products with overlapping functions—or pairing exfoliants with retinol—can exacerbate dryness, redness, and stinging.



Why More Layers Do Not Mean Better Absorption
Applying multiple layers does not mean active ingredients penetrate the skin more effectively. On the contrary, when fragrances, preservatives, surfactants, and active components across various products repeatedly contact the skin, sensitive complexions can develop irritant or allergic contact dermatitis.
When skin stings, turns red, or begins flaking, people often assume it lacks moisture and react by applying even more products. However, adding new cosmetics to an already compromised barrier masks the root cause, making it difficult to identify specific triggers and causing breakouts to persist. In such cases, reducing the number of steps and allowing the skin time to recover is essential.
Overlapping Ingredients: The Dangers of Combining Retinol with AHA and BHA
Dermatologists emphasize that the primary risk lies not just in the number of products, but in overlapping active ingredients. Combining retinol with chemical exfoliants like alpha hydroxy acids (AHA) and beta hydroxy acids (BHA) on the same day can severely overstimulate the stratum corneum—the skin's outermost layer—leading to dryness, burning, and inflammation. Adding acne treatments containing benzoyl peroxide further heightens the risk of irritation.
Additionally, AHAs increase photosensitivity, making rigorous sun protection mandatory. Those wishing to use multiple functional products should introduce them gradually one at a time, monitor skin reactions, and separate potent actives between morning and evening routines or alternate days.
Streamlining the Routine: Cleansing, Moisturizing, and Sun Protection
When the skin becomes sensitized, dermatologists advise adopting a "skincare diet" focused on three basic steps: a gentle cleanser, a moisturizer, and a sunscreen. Moisturizer should be applied immediately after cleansing to prevent tightness, while fragranced products and physical scrubs should be temporarily paused. Adding only one new cosmetic at a time makes it significantly easier to pinpoint the source of any adverse reaction.
If symptoms such as persistent redness, itching, swelling, or oozing continue even after discontinuing products, a consultation with a dermatologist is necessary. For individuals like Go who rely on layered routines to treat specific skin concerns, evaluating whether active ingredients overlap should always take priority over adding another product to the shelf.