Detailed answer

Skin allergies to skincare products can cause various reactions on the skin, such as redness, inflammation, or irritation. These reactions may result in temporary breakouts or acne-like symptoms, but they usually do not lead to permanent acne scars. Acne scars are typically caused by inflammatory acne lesions that penetrate deeply into the skin. However, it is important to note that using skincare products that irritate the skin can worsen existing acne and potentially lead to post-inflammatory hyperpigmentation, which can resemble scars. If you suspect a skincare product is causing an allergic reaction, it is recommended to discontinue its use and consult with a dermatologist for proper evaluation and treatment.