Dryness and frizz: what is actually happening
2026-10-29 21:26:18 · 5 min read
Frizz is usually about moisture balance and cuticle condition, not a lack of oil alone. Here is how to tell the difference and what to change first.
Dryness versus frizz
Dry hair lacks moisture. Frizz is what you see when the cuticle — the outer layer of overlapping cells — is raised or uneven, so light scatters and strands stop lying together. Hair can be both dry and frizzy, but the fixes are not identical.
Common contributors
- Frequent washing with harsh surfactants, or very hot water.
- Humidity: hair that is more porous absorbs water from the air and swells unevenly.
- Heat styling and colour or chemical processing, which lift the cuticle.
- Mechanical friction from rough towels, tight bands and brushing dry, tangled hair.
What tends to help
1. Condition every wash. Conditioner smooths the cuticle and reduces friction between strands.
2. Use a leave-in on damp hair if your hair is porous or curly — it slows moisture loss.
3. Lower the water temperature. Warm water is enough; very hot water strips surface lipids.
4. Dry gently. A microfibre towel or an old cotton T-shirt reduces friction compared with a rough towel.
5. Protect before heat. A heat protectant and a moderate temperature reduce further cuticle lifting.
What does not help
- Applying more oil to hair that is actually dry rather than lacking oil: oil can sit on the surface while the strand stays low in moisture.
- Washing less at any cost: if your scalp becomes itchy or flaky, that is a different problem to solve.
When to get it checked
Dryness and frizz are cosmetic concerns. If you also have scalp redness, scaling that does not improve, or itching that keeps you awake, ask a clinician or dermatologist — that may be a skin condition rather than a product problem.
Sources
- American Academy of Dermatology — Tips for healthy hair (public patient information)