Share Fem! is a Japanese community and information site focused on menstrual products and related concerns. Its goal is to make it easier to discuss topics that can be difficult to raise in everyday conversation, helping people share experiences and find ideas that may support others. Visitors can browse product reviews, search and compare items, and join a message board for questions and conversations.

The site covers a broad range of products, including disposable and cloth pads, pantyliners, tampons, menstrual cups and discs, period underwear, absorbent underwear, femcare washes, and other useful items. Its listings also include products and resources related to period pain, PMS, cycle prediction, and laundry. Reviews describe users’ experiences with well-known products from brands such as Sofy, Laurier, and Elis, including options for heavy-flow days, nighttime, exercise, and everyday use. Search filters help visitors explore reviews by category, rating, age group, concern, place of purchase, and recommended situation.