My dad had a positive experience with a laser hat he previously owned. He achieved visible hair growth results within four months of using that cap and it was constructed similarly to this one. It somehow got displaced, so I was elated when I came across this CNV Laser Hair Growth Cap by HairClub. It’s well-designed as it’s equipped with 81 diode lasers that generate 405mW of total output. It’s pain free, comfortable and easy to use. Just as the other one, my dad uses it 3x weekly for 30 minutes. This cap makes it convenient to wear as it includes a power bank that allows you to freely move about while undergoing the treatments. It has an automatic shut off feature after the 30 min session is complete. It’s suitable for all hair types but it’s been clinically tested for those with lighter skin tones as defined by the included Fitzpatrick Skin Types chart located on the side of the box. This laser hair growth cap is FDA-cleared as it’s supplied with low level laser therapy (LLLT) intended for hereditary hair loss or thinning. LLLT is FDA-Approved as it’s proven to be a safe & effective treatment for hair loss. This rechargeable HairClub Laser Hat comes well-packaged with a carrying/storage sports cap case, controller/battery pack, an universal a/c adapter and a detailed instruction manual. On the side of the box, the chart shows what hair loss type and skin tone it’s recommended for use based on testing. Also note, that this cap is not recommeded for hat sizes larger than 7 3/8 (22 1/4”cm) and to AVOID direct eye exposure to the laser light. I plan to gift this to my dad for his upcoming birthday. So I’ll be sure to update this review based on his anticipated hair growth results. Nevertheless, I’m extremely hopeful as this HairClub laser hat is comparable to the one he displaced in which he did achieve optimal results!