Wrinkles on Skin: Types and Causes

Why skin wrinkles

The middle layer of skin (dermis) contains collagen for strength and elastin for recoil. With age, collagen production falls by roughly 1% a year in adulthood, elastin degrades, the skin produces less oil, and the fat pads under the skin thin. Skin becomes thinner and less springy, and creases form where it folds repeatedly.

Sun damage speeds this up dramatically. UV light breaks down collagen and causes abnormal elastic tissue to build up (solar elastosis). Dermatologists estimate that most visible facial aging in fair-skinned people is due to sun exposure rather than time. See photoaging.

Types of wrinkles

Causes of early or premature wrinkles

• UV exposure: outdoor work, sunbathing, repeated sunburn and tanning beds.
• Smoking: reduces blood flow to skin and damages collagen. Smokers wrinkle years earlier.
• Fair skin and a family tendency to wrinkle.
• Rapid weight loss, including with weight-loss medicines, which can leave skin loose and lined.
• Air pollution.
• Poor sleep and repeated sleeping on one side.
• Long-term high-dose steroid creams or tablets, which thin the skin.

Sudden wrinkles: medical causes

• Dehydration: skin loses fullness and fine wrinkles appear quickly, reversing when fluids are replaced.
• Rapid weight loss from illness, dieting or medicines.
• Skin thinning (atrophy): from steroids or atrophic skin conditions.
• Cutis laxa: a rare inherited or acquired condition causing loose, sagging, wrinkled skin at a young age, sometimes after an inflammatory illness.
• Wrinkling of fingers in water is normal. Rapid wrinkling of the palms in water can occasionally be a sign of cystic fibrosis or hyperhidrosis.

Treatments that work

Daily care

• Sunscreen: broad-spectrum SPF 30 or higher every day, reapplied every 2 hours outdoors, plus hats and shade. Daily sunscreen users show less skin aging over time.
• Retinoids: prescription tretinoin has the strongest evidence for reducing fine wrinkles. Over-the-counter retinol is milder. Start slowly to limit irritation. Avoid retinoids in pregnancy.
• Moisturizers: plump the skin, especially if you have dry skin, and make fine lines less visible.
• Antioxidants such as vitamin C serums and alpha hydroxy acids have modest benefits.
• Stop smoking.

Procedures

• Botulinum toxin injections: relax muscles that cause frown lines, crow's feet and forehead lines. Effects last about 3 to 4 months.
• Dermal fillers: hyaluronic acid fillers soften deep folds and restore volume.
• Chemical peels, microneedling and laser resurfacing: stimulate new collagen and improve fine lines and texture.
• Radiofrequency and ultrasound skin tightening: for mild sagging.
• Surgery: facelift or eyelid surgery for significant sagging.

Choose a board-certified dermatologist or plastic surgeon for procedures, as complications are more common with untrained providers.

Prevention

The most effective prevention is consistent sun protection from a young age and not smoking. Wrinkles that already exist will not disappear with sunscreen, but further damage slows.

Frequently asked questions

What causes wrinkles on the skin?

Wrinkles form when skin loses collagen, elastin, oil and underlying fat with age. Sun exposure is the biggest accelerator, followed by smoking, repeated facial expressions, genetics and weight loss. Pollution and poor sleep may also contribute.

Why am I getting wrinkles so early?

Common reasons for early wrinkles are frequent sun exposure or tanning beds, smoking, fair skin, family tendency, rapid weight loss and dry skin. Starting daily sunscreen and a retinoid, and stopping smoking, can slow further changes.

What causes sudden wrinkles?

Sudden wrinkles are usually from dehydration or rapid weight loss, which reduce skin fullness. Long-term steroid use can thin the skin quickly. Rarely, loose, wrinkled skin appearing suddenly in a young person is caused by cutis laxa and should be checked.

Do wrinkle creams work?

Prescription tretinoin has good evidence for reducing fine wrinkles, and retinol has smaller benefits. Moisturizers temporarily plump the skin. Most other creams have limited evidence. Daily sunscreen is the most effective anti-aging product.

Can wrinkles be reversed?

Fine wrinkles can be improved with retinoids, peels, lasers and microneedling. Botulinum toxin smooths expression lines, and fillers soften deep folds. Deep static wrinkles and sagging respond less and may need resurfacing or surgery.