Drying Technique
Diffusing Curly and Coily Hair
Diffusing uses a wide, bowl-shaped attachment on a blow dryer to dry curly and coily hair with less direct airflow than a regular nozzle, which reduces frizz and helps curls hold the shape they were styled into rather than getting blown around.
Heat and Speed
Low heat, medium speed is the standard starting point -- high heat dries hair fast but raises the risk of frizz and, over time, heat damage, while very low speed can take longer than plopping or air drying alone would.
Hand Position Changes the Result
Holding the diffuser underneath sections and lifting toward the scalp builds root volume, which works well for hair types (like 4A) that tend to go flat at the crown. Diffusing upside down spreads that lift across more of the head at once, which suits denser or thicker hair that can support more volume.
Don't Touch It While It Dries
Curls are most fragile while still damp -- moving the diffuser around too much, or scrunching mid-dry, disrupts the curl clumps that formed during styling. Holding each section still for a few seconds before moving to the next gives better definition than constant movement.
When to Skip It
Very fine or loose-wave hair can end up over-dried or frizzed by a diffuser's concentrated airflow; air drying or plopping first, then finishing on the coolest diffuser setting, is usually gentler for that hair type.