| Fine or Limp Hair |
Small hair diameter, easily weighed down, and limited natural volume. |
Normal to oily |
Lightweight cleansing, gentle volumizing support, and minimal heavy conditioning agents. |
Panthenol, hydrolyzed proteins, and lightweight humectants such as glycerin. |
Highly rich oils, heavy butters, and excessive silicone buildup if the hair becomes flat. |
Wash when the roots appear oily or flat; many people with oily roots may need frequent washing. |
Roots look greasy soon after washing, hair feels coated, or volume disappears quickly. |
| Straight Hair |
Natural oils can travel easily from the scalp to the lengths, often making the hair look oily sooner. |
Normal to oily |
Balanced cleansing that removes sebum without leaving the lengths rough. |
Glycerin, panthenol, and mild surfactants such as sodium cocoyl isethionate. |
Very rich formulas when the hair is fine or becomes oily quickly. |
Adjust washing frequency according to oiliness, sweat, styling-product use, and comfort. |
Persistent oiliness, dullness, tangling, or a tight and dry feeling after washing. |
| Wavy Hair |
Loose bends or waves with a tendency toward frizz, dryness, and uneven moisture distribution. |
Normal, dry, or sensitive |
Moisturizing but not overly heavy; gentle cleansing can help preserve the wave pattern. |
Glycerin, panthenol, aloe vera, and lightweight plant oils when tolerated. |
Strong clarifying formulas used too often, which may increase dryness and frizz. |
Wash based on scalp oiliness; avoid aggressive scrubbing of the lengths. |
Waves lose definition, hair feels rough, or frizz increases after every wash. |
| Curly Hair |
Defined bends or ringlets; the curved structure can make natural oils less likely to reach the ends. |
Often dry or sensitive |
Moisture-preserving, low-stripping cleansing with a focus on scalp comfort. |
Glycerin, panthenol, aloe vera, mild surfactants, and conditioning agents suitable for the hair’s density. |
Frequent use of strong detergents or repeated clarifying treatments if the hair becomes dry. |
Wash when the scalp needs it; concentrate shampoo on the scalp and allow the rinse to clean the lengths. |
Loss of curl definition, brittle ends, increased tangling, or a persistently tight scalp. |
| Coily or Very Curly Hair |
Tightly curled or coiled pattern with higher susceptibility to dryness, shrinkage, and breakage. |
Often dry or sensitive |
Gentle, moisturizing cleansing with careful handling to reduce friction and tangling. |
Mild surfactants, glycerin, panthenol, aloe vera, and compatible emollients. |
Frequent harsh cleansing, very hot water, and heavy residue that is difficult to remove. |
Use a scalp-focused wash schedule that matches buildup, sweat, and personal comfort. |
Excessive dryness, breakage, severe tangling, or a flaky and uncomfortable scalp. |
| Dry, Coarse, or Damaged Hair |
Feels rough, lacks softness, or has increased porosity from heat, chemical processing, friction, or environmental exposure. |
Normal to dry |
Low-stripping cleansing with a moisturizing and smoothing finish. |
Panthenol, glycerin, hydrolyzed proteins, fatty alcohols, and conditioning polymers. |
Frequent strong clarifiers and formulas that leave the hair squeaky or stiff. |
Wash as needed; use lukewarm water and apply shampoo mainly to the scalp. |
Hair feels straw-like, snaps easily, develops more split ends, or becomes difficult to detangle. |
| Oily Scalp |
Roots become greasy quickly, sometimes with visible buildup or a heavy feeling. |
Oily |
Effective but gentle cleansing that removes excess sebum and styling residue. |
Mild cleansing surfactants; salicylic acid may help with oil and scale when included in an appropriate formula. |
Very heavy oils and excessive product layering; harsh cleansing may trigger irritation and discomfort. |
Wash according to oil production; daily washing can be reasonable when needed and well tolerated. |
Grease remains after washing, or the scalp becomes tight, itchy, red, or unusually sensitive. |
| Dry or Tight Scalp |
Scalp may feel tight or uncomfortable, with small dry flakes that are not necessarily oily. |
Dry or sensitive |
Fragrance-conscious, gentle cleansing that supports the scalp barrier and avoids excessive stripping. |
Glycerin, panthenol, aloe vera, and mild surfactants. |
Very hot water, frequent strong clarifying products, and fragranced formulas if they cause irritation. |
Wash when needed with lukewarm water; avoid vigorous scratching or aggressive brushing. |
Increasing tightness, burning, redness, itching, or persistent flaking after use. |
| Flaky or Dandruff-Prone Scalp |
Visible flakes may be accompanied by itching, oiliness, or scalp irritation. |
Dandruff-prone or seborrheic dermatitis may be possible |
Consider an anti-dandruff shampoo with a recognized active ingredient and follow its label directions. |
Common actives include ketoconazole, zinc pyrithione, selenium sulfide, salicylic acid, or coal tar, depending on local regulations. |
Scrubbing flakes aggressively or switching between many irritating products at once. |
Use the treatment product as directed; alternate with a gentle shampoo if appropriate. |
No improvement, worsening redness, pain, thick plaques, hair loss, or significant irritation. |
| Sensitive or Reactive Scalp |
Scalp may sting, itch, burn, or become red after exposure to certain products. |
Sensitive or irritation-prone |
Simple, fragrance-free or low-fragrance formula with a short ingredient list. |
Mild surfactants, glycerin, and panthenol; patch testing can help identify personal reactions. |
Fragrance, essential oils, dyes, and preservatives that have previously caused a reaction. |
Use lukewarm water and rinse thoroughly; stop a product that causes a clear reaction. |
Burning, swelling, rash, persistent itching, or symptoms that continue after discontinuation. |
| Color-Treated Hair |
Hair may be more porous, dry, or prone to fading after coloring or lightening. |
Normal to dry or sensitive |
Gentle, color-conscious cleansing with conditioning support and reduced stripping. |
Mild surfactants, glycerin, panthenol, and conditioning polymers. |
Frequent hot-water washing and strong clarifying formulas unless needed for buildup. |
Wash according to scalp needs; cooler water may help reduce comfort-related heat and dryness. |
Rapid color fading, rough texture, increased porosity, or more breakage after washing. |