The "white gunk" you might notice in hair follicles is typically sebum, a natural oil produced by your sebaceous glands to protect and hydrate the skin and hair. Sebum, combined with dead skin cells and other debris, can build up around the hair follicle and harden, often looking like a white or yellowish gunk.
"The white bulb at the end of the hair is keratin (or protein) and is the same keratin that makes up your skin and nails. A white bulb is not indicative of hair loss," said stylist Carrie Capalbo of Salon YOSHIKO. "It's part of the lining of the hair follicles.
That's dandruff and or dead skin. It's a normal part of having a scalp.
The white oily waxy stuff is called sebum, from the Sebaceous gland. It helps lubricate and waterproof the hair. When you're overheated it also helps keeps moisture near your skin as opposed to dripping off with the rest of the water in your sweat.
The clear coat you sometimes see on the ends of hairs you've pulled out is likely a mixture of sebum (natural oils produced by your scalp) and possibly some product residue or moisture. This coating helps protect the hair shaft and keeps it hydrated.
The white bulb indicates that the hair was in the resting (telogen) phase of the hair growth cycle. Normally, about 10-15% of your hair is in this phase, but with telogen effluvium, up to around 70% of your anagen hair (hair that is actively growing) may enter the resting phase and fall out prematurely.
White Piedra. This is an infection of the hair shaft which is caused by a fungus variety known as Trichosporon, which is found in soil and dirty water. It is not considered to be wildly contagious but can spread within contaminated environments.
The black dots are due to remnant of the upper part of the hair root, which remains adherent to the hair-follicle ostium. Hair powder, also known as hair dust, on the other hand, is caused by complete destruction of the hair shaft, leaving a 'sprinkled hair residue' [1].
First, there's the look. A build-up of sebum can make the hair look greasy, dull and oily rather than looking healthy, shiny and voluminous.
Scalp 101
Have you ever scratched your scalp and noticed white, waxy buildup under your nails? That's sebum mixed with dead skin cells. It's hard for shampoo alone to wash away your oily scalp issues. And issues like stress and weather can increase the scalp's sebum production, making you even oilier.
Generally, he says, the range is somewhere between once a day and once a week. “If you have very fine or thin hair, you may need to wash more often, while those with thick or curly hair may need to wash less often,” says Dr Elizabeth Bahar Houshmand, a double board certified dermatologist and hair health expert.
Although relatively uncommon, white piedra should be suspected in any patient presenting with irritation and foul odor in the genital area or multiple failed therapies for a nonspecific genital dermatitis.
If you pull out a strand of hair, you might notice a bulb or round ball (root) attached to the end of the hair strand. The root is surrounded by nerve fibers that let you feel when your hair moves or you touch your hair. Removing this root doesn't mean your hair won't grow back, because in most cases, it will.
White piedra is a superficial fungal infection of the hair. Several species of fungus that live in soil or dirty water can cause it. Piedra is the Spanish word for stone. White piedra appears as white or light brown depositions that loosely attach to the tip of a hair shaft and may group to form clusters.
In trichomycosis axillaris, a benign infection of axillary or pubic hair by Corynebacterium species, yellow-tan deposits form on hair shafts. This disorder may be difficult to distinguish visually from white piedra but KOH examination of the hair deposits will demonstrate the hyphae of Trichosporon in white piedra.
The white bulb at the end of your hair is essentially a bundle of protein, known as keratin. The role of the white bulb is to help the hair follicle root to the scalp, which then allows the hair to grow until it is shed.
Waxing and plucking can damage the hair follicles, causing new hair growth to be slower and thinner over time. These methods are not considered permanent hair growth, though.
If the flakes are dandruff caused by dryness and product buildup, a dandruff shampoo should help. If a specific skin condition is responsible for the flakes in your hair, a healthcare provider can help you with a treatment plan.
When you scrap away the skin on your scalp, you risk exposing it to infection and making your dandruff worse. If you feel the urge to scratch, use your time to the shower to gently massage your scalp instead. This will give you some relief and not disturb your scalp as much.
Most people who are healthy lose up to 100 strands of hair per day. If you have telogen effluvium, you may lose up to 300 strands of hair per day. Telogen effluvium may affect the hair all over your scalp, but it most commonly appears on the top of your head rather than the back or sides of your head.
Many of us, especially in cold and dry weather, may see white flakes falling from our hair and assume they are dandruff. Flakes from dry scalp are far more common than true dandruff. Dandruff is caused by overgrowth of a yeast (malassezia) present on most normal skin. Less washed hair can result in a more oily scalp.
Effective treatments for some types of hair loss are available. You might be able to reverse hair loss, or at least slow it. With some conditions, such as patchy hair loss (alopecia areata), hair may regrow without treatment within a year. Treatments for hair loss include medications and surgery.