The products are real and closely related, with the same core ingredients. But the video simplifies the pricing and packaging differences into a stronger claim than the evidence supports.
Claim-by-claim breakdown
Accurate (95% confidence): Cura-Heat period-pain and back/shoulder heat patches are made by the same company. Kobayashi’s Cura-Heat pages list both Period Pain and Back/Shoulder Pain under the same brand/company.
Accurate (97% confidence): The period-pain patch and the back/shoulder patch have the same listed ingredients: iron, activated carbon, and water. Cura-Heat says both products contain iron, activated carbon, and water.
Accurate (92% confidence): The period-pain version is sold in a smaller pack than the back/shoulder version. Retail listings show Cura-Heat Period Pain as a 3-pack and Cura-Heat Back & Shoulder Pain available in a 4-pack.
Accurate (71% confidence): The woman's pack costs more than the back/shoulder pack shown in the video. Current retailer listings show the period-pain pack at £4.30 on one site, while back/shoulder 4-packs are listed around £3.49–£4.20 on other sites; prices are not fixed across retailers.
False (88% confidence): The price difference is purely because the packaging is pink. The official product pages and retailer listings show different pack formats and product positioning; they do not show that pink packaging is the cause of the price difference.
Accurate (76% confidence): The video’s broader claim is that women are being charged more for essentially the same heat patch. The patches are closely related products with the same ingredients, but they are sold in different pack sizes and retailers list different prices.