I am using an online moisturizer, and after about one week, my skin quickly became whiter and clear of acne.

Mr. Chinh, 29, who has had atopic dermatitis since childhood, has experienced folliculitis for the past two years, causing persistent red, itchy rashes on his arms and back.

Deficiencies in vitamins C and K can lead to easy bruising and dry skin, while a lack of vitamin D often causes persistent itching.

I use many skincare products, and recently my skin has become red, itchy, and flaky, but I am unsure which product is causing it. Do I need a cosmetic allergy test to determine the cause? (Ngoc Vy, 25, Ho Chi Minh City)

Individuals who self-peel at home without properly assessing their skin condition are prone to breakouts and increased skin pigmentation.

Hung, 19, has experienced hair loss for a year, with noticeable thinning and baldness from his forehead to the crown.

Melasma, a prevalent pigmentation disorder, is categorized into three types: superficial, deep, and mixed.

Individuals with atopic dermatitis should bathe in warm water for 5-10 minutes, use gentle body wash, avoid vigorous scrubbing, and apply moisturizer immediately after bathing to restore the skin's protective barrier.

Large, prominent eye bags, noticeable for two years, made Anh Tu's face appear tired; doctors treated him with RF microneedling technology.

Fluctuations in the hormonal trio of estrogen, progesterone, and testosterone during the menstrual cycle can increase oil secretion, alter skin moisture, clog pores, and cause acne.

Washing the face too often, using strong oil-control products, and increasing exfoliation make skin sensitive to sunlight and bacteria, leading to easier damage.