Consuming omega fatty acids can help to improve your hair from the inside, since they are filled with nutrients and proteins. Taking an omega supplement along with antioxidants helps to improve hair density and diameter. It also reduces hair loss. Omega fatty acids help your cells to work correctly and can boost immunity, leading to better overall health. Follow the manufacturer’s recommended dosage.
Minoxidil: This medicine is applied to the scalp. It can stop hairs from getting thinner and stimulate hair growth on the top of the scalp. The U.S. Food and Drug Administration (FDA) has approved minoxidil to treat hair loss. It is the only hair re-growth product approved for men and women. A dermatologist may combine minoxidil with another treatment.
Women with androgenic alopecia may consider trying prescription ketoconazole at a strength of 2 percent. This drug comes in the form of a shampoo and also goes by the name Nizoral. It’s an antifungal agent and may help reduce the body’s production of testosterone and other androgens that lead to hair loss. You can also find 1 percent strength at your local pharmacy, but it may not be as effective.
The other main hair-loss treatment that was recommended by all four dermatologists I interviewed is finasteride, often called by its brand name Propecia. This FDA-approved medication is only available with a prescription, but these days, it’s found as a generic and ordered online after a virtual consultation, through start-ups like Hims, Keeps, and Lemonaid.
According to holistic nutritionist and founder of Kore Kitchen Meryl Pritchard, getting plenty of healthy fats like omega-3s can jump-start hair growth. "Healthy fats are essential to hair health since our bodies can't produce omega-3 fatty acids on their own. Therefore, it's important to get these fats through our diet: "They nourish hair follicles to give strands that strong, shiny, lustrous glow like in the Pantene Pro-V commercials." Tempting, right?
That said, there are products that don’t have FDA approval or clearance, but may help prevent hair loss. For example, shampoos with ketoconazole, a chemical with anti-DHT properties, is widely used to treat fungal infections but has become popular among consumers as a hair loss treatment. It makes sense — research shows that ketoconazole actually has beneficial effects on hair growth (especially for those with seborrheic dermatitis).
The first robot designed to help surgeons perform a portion of the hair transplant procedure recently became FDA approved. Called the ARTAS Robotic-Assisted FUE System by Restoration Robotics, it’s an image-guided robot with micron-level precision that harvests up to 1,000 hair grafts per hour – which has made hair transplant surgery even more accurate and efficient.
There’s no cure for baldness, but there are ways to hold on to what you've got. The six dermatologists and the clinical studies point to three methods: minoxidil, laser treatments, and prescription finasteride. The key is finding the combination and hair loss regimen that works for you. A doctor is your best bet for that kind of guidance — but we found a few trustworthy products that will work for most people.
In either sex, hair loss from androgenetic alopecia occurs because of a genetically determined shortening of anagen, a hair's growing phase, and a lengthening of the time between the shedding of a hair and the start of a new anagen phase. (See "Life cycle of a hair.") That means it takes longer for hair to start growing back after it is shed in the course of the normal growth cycle. The hair follicle itself also changes, shrinking and producing a shorter, thinner hair shaft — a process called "follicular miniaturization." As a result, thicker, pigmented, longer-lived "terminal" hairs are replaced by shorter, thinner, non-pigmented hairs called "vellus." 
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