2. Oil-rich conditioner. “Oils improve hair’s tensile strength,” says Paradi Mirmirani, a hair-loss specialist and dermatologist in Vallejo, California. In other words, oils make hair less likely to break under pressure, which is especially important for thinning hair that’s prone to snapping when brushed or styled. Mirmirani recommends using a conditioner fortified with natural oils, like Burt’s Bees Very Volumizing Pomegranate Conditioner, which contains avocado oil ($8), or Honest Company Conditioner with coconut oil ($10). That one’s got an added benefit: “Coconut oil has been shown to penetrate hair,” says cosmetic chemist Randy Schueller, so it makes your hair stronger from the inside out. (Just don’t load up on pure coconut oil. “You might overshampoo your hair to get it out, and then you’ll end up drying your hair and undoing any benefit,” says Fusco.)
3. Surgical hair replacement. If you opt for hair transplantation (which runs $5,000 and up), your dermatologist or hair-replacement surgeon will remove single hair follicles from the back of the head, near the nape of the neck, where your hair is fullest. Once those follicles are harvested, they are then dissected and reimplanted into an area of the scalp where hair is thinning. The procedure takes anywhere from three to six hours, and newly implanted hair will usually begin to grow on its own 3 to 12 months after the treatment session. Traditionally, hair transplantation required removal of an entire strip of scalp, Sadick says, but this new follicle-by-follicle technique looks more natural when it heals and allows patients to get heads of hair as dense-looking as before they started losing it.
Dr. Zeichner recommends choosing a shampoo and conditioner that matches the issue you're experiencing. If you have thinning or shedding hair, he says to opt for strengthening products made with keratin or to choose one infused with vitamins and antioxidants, as these can all strengthen strands and create a better environment for your hair follicles to function.