Summarize the following:
Testosterone can be broken up into 2 types, often referred to as T and DHT. DHT levels impact beard hair density, while T impacts beard hair thickness. Managing T and DHT levels under medical supervision may enhance your beard growth.  Do not use testosterone-boosting pills, creams, injections, or other products without the advice and guidance of your doctor. There can be a range of unwanted side effects, and you could end up impeding beard growth. Your doctor may recommend engaging in regular strength-training sessions as a way to naturally boost testosterone levels. Rogaine, the most common brand name for minoxidil, is widely used to slow the progress of male pattern baldness. If applied to the face properly, it should help stimulate beard growth. However, even though Rogaine is available over the counter in many areas, you should always consult your doctor before using it on your face.  This may be a better treatment option if you have patches where your beard doesn’t grow in well, as opposed to wanting your entire beard to grow in faster. If and when you stop treatment, any new hair growth may fall out. Microneedling involves rolling a device on your face that’s similar to a lint roller—except instead of sticky paper on the roller, it has hundreds of tiny needle points. Some advocates for micro-needling believe the tiny pinpricks stimulate the hair follicles and enhance beard growth.  Some dermatologists and cosmetic surgeons use in-office micro-needling to address issues like acne. Talk to a medical professional you trust before undergoing micro-needling treatments or buying a device yourself.  If used correctly, the process should be safe and relatively painless. However, it’s essential that the device is sanitized properly before each use according to the product instructions (usually by soaking it in alcohol). If there are areas of your beard that simply won’t grow in, hair transplants may be your only choice. As with top-of-the-head hair transplants, individual hair follicles are relocated from one area (like the back of the neck) to another (like your cheek).  Hair transplants usually require multiple procedures that are both costly and time-consuming. It may take up to 2 years to see the full results, and the procedure doesn’t always work. Transplants may help fill in gaps in your beard, but it won’t make your beard grow faster.

Summary:
Seek medical advice regarding your testosterone and DHT levels. Talk to your doctor about using minoxidil (Rogaine) on your face. Ask a medical expert about micro-needling to stimulate hair growth. Look into facial hair transplants as a final option.