Skin Laxity
Pronunciation: LAK-sih-tee
The reduction in skin firmness and elasticity that results in sagging or loose tissue, commonly addressed in cosmetic dermatology through energy-based devices and injectable treatments.
Full Definition
Skin laxity is a consequence of age-related degradation of collagen and elastin fibres in the dermis and subcutaneous tissue, compounded by gravitational descent of facial fat compartments. In clinical documentation, the degree of laxity is often graded on validated scales (e.g., the FACE-Q or Global Aesthetic Improvement Scale) to provide objective endpoints. Editors should note that 'laxity' and 'ptosis' are related but distinct terms: laxity refers to loss of intrinsic tissue tone, while ptosis denotes gravitational descent of a structure (e.g., brow ptosis, lid ptosis). The term is always spelled 'laxity', not 'laxness', in clinical usage. Treatment copy frequently references high-intensity focused ultrasound (HIFU) and radiofrequency as standard-of-care modalities for non-surgical skin tightening.
Usage
Usage note: Use 'laxity', not 'laxness', in clinical copy. Distinguish from 'ptosis', which denotes positional descent rather than loss of tissue tone.
In Context
- "The outcome assessment section used 'laxness' where 'laxity' is the accepted clinical term; the editor made the correction throughout." — Clinical outcome assessment
- "Marketing copy claiming the device 'eliminates skin laxity' was softened to 'improves the appearance of skin laxity' to comply with advertising standards." — Regulatory advertising review