How do GLP 1 weight loss drugs change our skin?

GLP-1 weight-loss medications (semaglutide, tirzepatide, etc.) can affect skin in several ways. Below is a clear summary of common skin changes, why they happen, and practical med spa treatments and strategies to address them.

How GLP-1 drugs can change the skin

• Rapid weight loss and volume changes

  • Loose or sagging skin, especially around the abdomen, upper arms, inner thighs, and neck due to loss of subcutaneous fat and reduced skin elasticity.

• Decreased subcutaneous fat

  • Facial thinning or hollowing (temples, cheeks), which can accentuate lines and make aging more noticeable.

• Changes in skin texture and firmness

  • Reduced collagen and elastin production can lead to crepey skin or decreased firmness over time.

• Stretch marks (striae)

  • New stretch marks or worsening of existing ones can occur as skin stretches and contracts during weight loss.

• Worsening of certain conditions

  • Pre-existing acne, rosacea, or eczema may flare from hormonal changes, dietary shifts, or altered microbiome during weight loss.

• Improved or clearer skin (in some cases)

  • For some people, reduced inflammation from improved diet/weight can lead to clearer skin or fewer breakouts.

What we can do about it at the med spa

• Skin tightening and firming

  • Radiofrequency (RF) treatments (monopolar, microneedling + RF) to stimulate collagen and tighten lax skin.

  • Combination protocols (RF + ultrasound or RF + laser) for improved results.

• Volume restoration and facial contouring

  • Hyaluronic acid fillers to restore lost facial volume (cheeks, temples, nasolabial folds) and improve contours.

  • Neurotoxin adjustments (Botox) to refine dynamic lines that may appear more prominent after weight loss.

• Improving skin texture and stretch marks

  • Microneedling (with or without PRP) to improve texture and stimulate collagen for stretch marks.

  • Fractional laser resurfacing to remodel dermal tissue, improve crepey skin, and fade stretch marks.

  • Chemical peels to improve surface texture, tone, and mild scarring.

• Body contouring for moderate laxity

  • Non-invasive body contouring devices (RF, cryolipolysis adjuncts) to tighten skin and reduce small pockets of fat.

  • For significant redundant skin after substantial weight loss, surgical referral (plastic surgery) may be recommended; med spa can coordinate care and pre/post-op skin prep.

• Skincare and topical support

  • Medical-grade topical regimens: retinoids (increase collagen and turnover), vitamin C serums (antioxidant, collagen support), peptides, and daily SPF to protect remodeling skin.

  • Hydrating treatments: medical facials, hyaluronic acid-based serums, and in-office hydration therapies.

• Nutritional and lifestyle adjuncts

  • Guidance on protein intake, collagen-supporting nutrients (vitamin C, zinc), and hydration to support skin repair.

  • Recommend discussing supplementation (collagen peptides, vitamins) with treating clinician or dietitian.

• Management of inflammatory or reactive conditions

  • Tailored acne, rosacea, or eczema treatments (topical prescriptions, light-based therapies, anti-inflammatory facials) as needed.

• Monitoring and coordination with prescribing clinician

  • Work with the patient’s prescribing provider to time elective procedures appropriately (e.g., filler placement when weight is stable) and to ensure there are no contraindications.

  • Pre-treatment evaluation to assess skin quality, degree of volume loss, and realistic expectations.

Practical recommendations for patients on GLP-1 medications

• Wait until weight is relatively stable before major volume-restorative treatments (usually several months after reaching a new maintenance weight).

• Start skin-supportive topicals early: retinoid at night (if tolerated), vitamin C in the morning, and daily SPF 30+.

• Consider non-surgical tightening and collagen-stimulating procedures early to maximize skin remodeling during weight loss.

• Communicate any flares of acne, rashes, or rapid changes to both your prescribing clinician and med spa team.

• Plan a staged approach: address texture and firmness first, then consider fillers or contouring once weight stabilizes.

At Pure Laser Med Spa & Wellness, we offer individualized evaluations to create treatment plans tailored to the specific skin changes you’re experiencing from GLP-1–assisted weight loss. During a consultation we’ll assess skin laxity, volume loss, texture concerns, and overall goals, then recommend a treatment plan cusomized to your needs.