Which iron technique tends to produce more uniform curls?

• A. Spiral
• B. Marcel
• C. End Technique
• D. Base-to-ends

Answer: (A)

Uniform curls come from wrapping the hair around the iron in a way that keeps the same contact and tension along the entire strand. Spiral curling achieves this best: you wrap the hair around the barrel in a smooth, continuous spiral from base to ends, holding consistent position and tension so every part of the strand heats and forms curls evenly. When you release, the result is curls that share the same diameter and shape throughout, which is why this method yields the most uniform look. The Marcel wave method creates waves with more texture and variation due to its different wrapping and direction changes; ending techniques focus curl only on the ends, producing a softer, less uniform result; base-to-ends can also vary if angle or tension isn’t kept constant.