Loose skin after weight loss?

At 45 lbs the loose skin outcome depends on age and pace. Upper arm laxity is the most common area. Lifting while losing slows it down more than anything else.
 
Loose skin timeline after rapid recomposition is a function of how fast the underlying fat shifts - the HGH and TRT combination accelerates that shift so the skin adaptation has to catch up at the same pace the underlying structure changes. Most people find that 6-12 months of stable weight with active skin-tightening interventions (retinol topicals, peptides like GHK-Cu, resistance training maintaining muscle fullness) produces meaningful improvement. Surgical options make sense when there's excess skin that doesn't adapt despite all that - but the window for assessing whether it's needed realistically starts a year after hitting stable weight.
 
Progressive resistance training added early makes a real difference - the muscle growth underneath tightens the surface more than time alone.
 
Loose skin from 25 pounds tends to improve substantially over 12-18 months as elasticity readjusts - the butt and lower abdomen are the slowest areas to firm up. Resistance training during and after the loss phase makes the biggest difference in how pronounced it stays.
 
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