Thinx Partners With Real-Life Witch on Limited-Edition Blood Spell Collection

Thinx built its Spring Equinox drop around Lizzie Arden, a modern witch who cast actual enchantments into three limited-edition period underwear styles for the brand's Blood Spell Collection, which launched March 20 as a one-week-only offering on Thinx.com and TikTok Shop.

The collection maps each enchantment to a specific Thinx style. The Confidence Spell corresponds to the Thinx Teens Active Mesh Bikini, a sporty mesh construction; the Money Moves Spell to the Thinx for All Everyday Comfort Lace Brief; and the Love Spell to the Thinx Ultra Soft Hi-Waist. All three deliver leakproof protection for up to 12 hours, anchoring the witchy premise in Thinx's core functional claim.

The March 20 timing was deliberate. Thinx framed the launch around the Spring Equinox as a season of manifestation and renewal, leaning into the cultural current around intention-setting that gives the collection its through-line. Arden, known online as @lizzieandthebats, is described by the brand as a real-life witch, and Thinx did not soften that into vague "inspired by" language. The enchantments were cast, not "evoked" or "channeled," which is a meaningfully bolder creative commitment than most brand collaborations in this space manage.

For gifting purposes, the collection occupies a precise sweet spot: novelty items that still deliver on performance, with a price point the launch positioned under $100. That combination makes it a credible pick for younger shoppers who might pass on period underwear as a purely utilitarian buy but respond to both the occult aesthetic and the scarcity of a one-week drop. The three spell names, Confidence, Money Moves, and Love, read less like product descriptors and more like a seasonal ritual checklist for someone stepping into spring.

The one-week availability window that began March 20 has now closed. If Thinx treats this as a recurring seasonal format rather than a one-off stunt, the Spring Equinox framing gives it a natural calendar hook to return to next year, and Arden's involvement gives it a collaborator worth following in the interim.