(TrendHunter.com) Sincerely Yours is a new, dermatologist-developed skincare brand made for teen skin, and it fills a void in the market for gentle, age-appropriate options for Gen Alpha. The brand is introducing…(TrendHunter.com) Sincerely Yours is a new, dermatologist-developed skincare brand made for teen skin, and it fills a void in the market for gentle, age-appropriate options for Gen Alpha. The brand is introducing…