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Tampons designed to bring scientific rigour to menstrual care. Every Daye tampon is designed and tested to medical standards — engineered for safety, comfort, and maintaining vaginal health.

Daye offers two tampon variants:
Both tampon variants are manufactured under ISO 13485 and GMP — the same frameworks used to produce medical devices and pharmaceuticals. Unlike conventional tampons, Daye Tampons are treated as medical products, meaning every component, process, and test is held to higher safety and biocompatibility requirements.
The Daye CBD Tampon is FDA 510(k)-cleared (K223883) for menstrual use and produced in compliance with EU MDR requirements. Its safety profile has been verified through pre-clinical and clinical studies assessing irritation, microbiome impact, and toxin production, with results reviewed by independent clinicians and Daye’s Scientific Advisory Board.
Innovative design & sustainable materials
Gamma irradiation
All Daye Tampons are sanitised using gamma irradiation, ensuring microbial safety from production to use.
Clean-room manufacturing
Daye Tampons are assembled inside a clean-room environment, protecting each unit from airborne or handling contamination and helping preserve vaginal microbiome integrity.
Metal detection
Before leaving the clean room, every tampon passes through metal detection sensors to prevent any risk of metal shedding or contamination during production.
Continuous lab testing
Every batch is screened for microbes, PFAs, and heavy metals to guarantee ongoing product purity and safety.
Why this matters?

The vaginal and uterine tissues are rich in endocannabinoid receptors (CB1 and CB2) — components of the body’s innate endocannabinoid system, which plays a key role in modulating local pain perception, inflammation, and immune function.
The CBD coating on Daye Tampons interacts locally with these receptors within the vaginal canal. High-performance liquid chromatography (HPLC) studies indicate that CBD applied intravaginally remains localised, with no detectable systemic absorption, ensuring it is non-psychoactive and confined to the area of use.
In simple terms: Daye’s formulation is designed to support vaginal comfort by engaging the body’s own receptor network — locally, precisely, and safely.
Purity & quality by design
Supercritical CO₂ extraction
a solvent-free process that ensures a pure, clean, and chemical-residue-free CBD extract.
THC-free formulation
Tested for safety & consistency
Uniform CBD concentration
Non-detectable THC (<0.01 %)
Absence of microbial contaminants and residual solvents
Why this matters?
No Vaginal Irritation
Non-Toxic
TSS Risk Reduction
Impact of CBD on Good Bacteria
No Abrasions of the Vagina
Clinical validation & safety evidence
Daye Tampons undergo laboratory and clinical testing to verify their safety, purity, and compatibility with the vaginal ecosystem.
Our validation spans every stage of product safety — from clinical trials and biocompatibility testing, to how the tampon supports vaginal microbiome balance. Production batches are independently lab-tested, and monitored through continuous post-market surveillance to ensure consistent safety and performance.
Impact on the vaginal microbiome
The study has concluded that Daye tampons do not impact the vaginal microbiome negatively. In fact, the CBD was shown to increase the level of good bacteria (Lactobacilli). Read study
TSS-associated toxin production:
No detectable Toxic Shock Syndrome toxin was found on the Daye tampon after 8 hours of incubation. Read study
Biocompatibility (ISO 10993)
Certified testing labs verified no irritation or toxicity when used as intended.
Why this matters?