Reducing shrinkage in 4C natural hair involves techniques that stretch your curls while maintaining their health and definition. Start by using the banding method: section your hair into parts and wrap each section with elastic bands from the roots to the tips, ensuring even tension. This technique elongates your hair without heat.

Blow-drying with a comb attachment on a low heat setting is another effective option for gentle stretching. Alternatively, twisting or braiding your hair while it's damp and allowing it to air-dry can help reduce shrinkage. For added definition, you can also try threading, a traditional technique where thread is wrapped around sections of hair to stretch and shape it.

Hydration is key to reducing shrinkage, as well-moisturized curls are more manageable and less prone to drawing up tightly. Use rich, hydrating leave-ins, creams, and oils to lock in moisture and enhance elasticity. Protective styles like stretched twists, buns, or flat twists can also help keep your hair elongated for longer periods.