Neck lines come from aging, loss of skin elasticity, genetics, and repeated looking down at devices.
Common causes
- Aging and loss of collagen.
- Genetics.
- Looking down at phones (“tech neck”).
- Sun damage.
- Weight changes.
- Sleep position.
Prevention
- Use SPF daily.
- Moisturize.
- Limit screen time looking down.
Treatment
Retinoids, fillers, Botox or laser.
Normal
Neck lines are a normal part of aging.
Mechanisms behind lines
Neck lines form from repeated skin folding (horizontal “necklace” lines), loss of collagen and elastin with age, sun exposure and weight changes. Collagen production falls about 1 percent per year after about age 20 in many estimates. Looking down at phones and tablets may contribute to horizontal lines, often called “tech neck,” although evidence is based largely on clinical observation.
- Some people have lines from childhood due to skin folds.
- Photoaging, caused by UV, accounts for up to 80 percent of visible facial aging, according to dermatology reviews.
- Neck skin has fewer oil glands and is thinner than facial skin.
Prevention and treatment
Apply broad-spectrum SPF 30 or higher to the neck daily. Retinoids, vitamin C serums and moisturizers support skin quality. Clinic options include botulinum toxin, hyaluronic acid fillers, microneedling, fractional lasers and radiofrequency. Results vary and costs run from hundreds to a few thousand dollars. Consult a board-certified dermatologist to match the treatment to the cause.
Mechanisms
Neck lines, sometimes called necklace lines, come from repeated skin folding with head movement, loss of collagen and elastin with age, sun damage and genetics. Looking down at phones may contribute, though evidence is limited.
Prevention and treatment
Apply sunscreen to the neck, moisturize and use retinoids. In clinics, options include fillers, botulinum toxin, microneedling and laser. The American Academy of Dermatology recommends SPF 30 or higher broad spectrum daily.
Skin and posture
Neck lines are horizontal wrinkles linked to sun damage, repeated skin folding and loss of collagen, which declines about 1 percent per year after age 20. Heavy phone use may add to creasing, although studies are limited. The neck skin has fewer oil glands than the face.
Treatment options
Daily SPF 30 or higher, retinoids, vitamin C serums and moisturizers help. In clinics, botulinum toxin, hyaluronic acid microdroplets, laser resurfacing, radiofrequency microneedling and ultrasound treatments are used. Costs run 300 to 2,000 USD per session.
Based on data from the American Academy of Dermatology and the American Society of Plastic Surgeons
