4C Hair: A Complete Guide

Type 4C hair has the tightest pattern of all: densely packed coils and sharp zigzag bends, often with no visible curl definition when left to dry on its own. It can shrink to a quarter of its true length. It is also the most fragile hair type, and understanding why changes how you care for it.

How to recognize it

• Very tight coils or zigzags, with little or no defined curl pattern when dry.
• Shrinkage of up to 75 percent. Hair that reaches the shoulders when stretched may sit close to the scalp.
• Dense, cottony or fluffy texture.
• Strands that range from fine and soft to coarse and wiry, often on the same head.
• Dryness. 4C hair loses moisture faster than any other type.

4B hair has a similar zigzag bend with slightly more visible definition; 4A forms small, clear coils. Most type 4 heads contain more than one.

Why 4C hair is fragile

Every bend in a strand is a weak point. 4C hair has more bends per inch than any other pattern, so there are more places for it to snap. The same bends stop the scalp's oil from traveling down the hair, which leaves the lengths dry, and dry hair breaks more easily still.

It follows that 4C hair often grows at the same rate as any other hair and appears not to, because the ends break as fast as the roots grow. The purpose of a 4C routine is length retention: keep the hair moisturized, and handle it as little as possible.

The routine

Cleanse, weekly or every ten days

Use a gentle, moisturizing shampoo, focusing on the scalp. A co-wash can stand in between shampoos.

Condition and detangle, in sections

Divide your hair into four to eight sections. Saturate each with conditioner and detangle with your fingers first, then a wide-tooth comb or flexible brush, starting at the ends. Never detangle dry. Twist each finished section to keep it from re-tangling.

Deep condition, every wash

Twenty to thirty minutes under a shower cap. Warmth helps the treatment absorb.

Moisturize and seal

On damp hair, section by section, layer your products so that water-based moisture goes on first and is then sealed in.

1. Leave-in conditioner.
2. Cream.
3. Oil or butter, concentrating on the ends.

This is the LCO method. Some prefer oil before cream; both are explained in The Order to Apply Curl Products.

4C hair is not slow to grow. It is quick to break, and that can be changed.

Styling

4C hair can be worn in more ways than any other type. A few principles apply to all of them.

Stretched styles reduce tangles. Twist-outs, braid-outs and banding stretch the coil, which shows more length and prevents the single-strand knots that shrunken hair forms.

Wash-and-gos need hold. Defining 4C coils takes a firm gel applied in small sections to very wet hair.

Protective styles need protecting too. Braids, twists and wigs reduce daily handling, which helps retain length. Keep them loose at the hairline, moisturize the hair inside them, and do not leave them in beyond six to eight weeks.

Between washes

Moisture fades after a few days. Mist lightly with water or a water-based leave-in, apply a little cream to the ends and re-twist loosely at night. If your hair still feels dry two days after washing, look at porosity: low porosity coils need lighter products and warmth, not heavier butters.

At night

Non-negotiable. A satin bonnet or scarf every night, ideally with a satin pillowcase underneath in case it slips. Cotton takes moisture and causes friction, and 4C hair can afford neither.

What to avoid

• Detangling dry, or rushing it.
• Harsh sulfate shampoos used every week.
• Tight styles that pull at the edges.
• Frequent high heat.
• Small-tooth combs.
• Going more than two weeks without washing; a clean scalp grows healthier hair.

What to expect

Change with 4C hair is measured in months. With consistent moisture and gentler handling, most people notice softer hair within a few weeks and less breakage within two or three months. Length follows, slowly, once the ends stop breaking.

For the wider family, see the Coily hair guide.