Easy on-demand birth control for women

A next-generation hormone-free contraceptive.

Mucus engineering

By studying and understanding the sugars and protein molecules of mucus we can engineer groundbreaking biomedical products.

Cervical mucus is a type of mucus that serves many functions – it prevents infections and also act as a barrier or a transport medium for sperm cells during your menstrual cycle.

We have discovered that it is possible to rapidly reinforce this barrier function, which opens the possibility for a completely new type of on-demand birth control for women.

The benefits in a nutshell

Minimal risk

Only the naturally occurring mucus layer is modified

Easy to use

Delivered using a vaginal soft capsule that is easy to insert

Long lasting

Protects for a full day (depending on final release profile)


Already works within minutes of insertion


We're always on the lookout for talented and passionate people.

More information


Feel free to get in touch with us for collaboration, research, career information or other purposes.

Cirqle Biomedical

BioInnovation Institute
Ole Maaløes vej 3
DK 2200 Copenhagen N

AlbaNova University Center
Royal Institute of Technology (KTH)
106 91 Stockholm