What Causes Crepey Skin on Arms and Legs — and What Actually Helps

Crepey skin is thin, finely wrinkled skin that looks and feels like crepe paper. It's most common on the upper arms, thighs, knees, chest and neck, and it usually shows up in women after 45. Here's why it happens, what makes a real difference, and what's mostly marketing.

What is crepey skin?

Crepey skin is skin that has lost thickness and spring. Fine lines run across the surface, and it creases when you move. Unlike a deep wrinkle in one spot, it covers a whole area, like the back of the arm or above the knee. It isn't harmful, but it's one of the hardest skin changes to improve with ordinary lotion.

Why skin turns crepey after 45

• Collagen and elastin decline. These proteins keep skin thick and elastic. Production slows steadily with age, so skin gets thinner and less able to bounce back.
• Hormonal changes. Estrogen supports collagen and skin moisture. As estrogen drops through perimenopause and after menopause, skin collagen falls noticeably and dryness increases.
• Sun damage. Years of UV exposure break down collagen and elastin. That's why crepiness often shows up first on the arms, chest and legs.
• Weight loss. When fat volume shrinks quickly, stretched skin may not fully retract, leaving it loose and crinkled.
• Dryness. Dehydrated skin shows fine lines more, which makes crepiness look worse than it is.

Where crepey skin shows up

The most common areas are the upper arms, inner thighs, above the knees, the chest and décolletage, and the neck. These areas get years of sun, have relatively thin skin, or both.

What helps, and what doesn't

• Moisturizers plump the surface and make crepiness look better for a few hours. They don't change the skin underneath.
• Over-the-counter retinol is a milder form of vitamin A that the skin has to convert before it works. It can help over time, but the effect is modest.
• Prescription tretinoin is the active form of vitamin A, so it works directly in the skin. It has decades of research behind it for sun-damaged skin. In a landmark New England Journal of Medicine study (Griffiths et al., 1993), it was shown to restore collagen formation.
• Daily sun protection on exposed areas helps protect the collagen you have.
• Procedures like radiofrequency or surgery are options for significant loose skin, especially after major weight loss. Creams improve texture and tone; they don't remove excess skin.

Prescription vs. over-the-counter crepey skin creams

Most crepey skin creams sold in stores are moisturizers, sometimes with a low dose of retinol. A prescription crepey skin cream can contain tretinoin at strengths no over-the-counter product is allowed to carry. A licensed provider reviews your history first, and a pharmacy compounds the cream.

Source: Griffiths CEM, et al. Restoration of collagen formation in photodamaged human skin by tretinoin (retinoic acid). N Engl J Med. 1993;329(8):530–535.