Thinning hair?

Whether your hair is thinning, breaking, patchy or flaked with dandruff, the right studyproven intervention can get your hair healthy and shining again! Jaliman. And its iron and zinc boost nutrient flow to follicles for thicker, fuller hair. Prefer fish?

If your hair is thinning . . . have your thyroid checked!

A common, yet often overlooked cause of hair loss is a low-functioning thyroid. It weakens every strand and makes it difficult to replace those that fall out! “When the gland isn’t producing enough thyroid hormones, it greatly reduces your body’s ability to regenerate hair cells,” says dermatologist Debra Jaliman, M.D., author of Skin

Rules. A blood test will reveal if your thyroid is underactive. If so, an inexpensive medication could have your hair growing in as thick as ever within six months!

If your hair is brittle . . . wear a hat!

The surprising cause of dry, brittle hair that splits easily? Too much sun, says Joshua Zeichner, M.D. “UV light can damage the outer layer of the hair known as the cuticle so that it does not lie flat.” Solution? Don a hat with a sunprotective UPF (ultraviolet protection factor) of 30 to block the rays and protect your scalp from burns. One option: Sun Seeker Hat, $36, Sundayafternoons.com.

If your hair is limp . . . eat a burger!

For hair to look full and luxurious, sufficient protein, iron and zinc are essential—and burgers pack all three! “Beef’s protein helps produce the keratin that’s vital to hair structure,” says Dr.

If your hair is patchy . . . talk to your pharmacist!

Many medications, including blood thinners and some antidepressants, can trigger sudden hair loss. “This occurs when hair roots shift into the ‘resting’ state, increasing shedding,” says Dr. Jaliman. Switching meds can trigger new growth within six weeks.

Important: Talk to an M.D. before changing any medication.

If you have dandruff . . . rethink how you rinse!

An extra 15 seconds can send dandruff packing, says Dr. Jaliman. Hair- care products leave bits of residue every time you use them, which accumulates over time. After shampooing, massage your scalp while rinsing until the water flows without suds. Once it’s clear, rinse 15 seconds more.