Body-Balanced
by
Hydrogel Harmony
Aligned with your body's natural microenvironment
Clinically established
biomaterials precisely engineered
Millions are ditching hormones
The Problem
Ditching of the pill
Contraceptive Pill Usage has halved (44% to 21%)
1 in 3 women don't use any consistent contraception
Adoption Gap
72% prefer
hormone-free options
yet only 15% use condoms
Design Failure
1 in 3 report*
barrier discomfort
*( Internal reports suggest
up to 2 in 3)
British Pregnancy Advisory Service (BPAS): Contraception Re-Imagined: The Unfinished Revolution (n=1033), Crosby et al. 2005, Crosby et al. 2013.
Our Solution
Introducing Seasilk®;
Seasilk ® is an engineered hydrogel platform designed to align with the body's natural micro-environment, restoring physiological balance.
This enables comfort, compatibility and confidence for connection, setting a new category-defining standard beyond traditional products.
Seasilk is built upon clinically grounded biomaterials which applies established formulation science to precisely tune pH, osmolality and rheology in harmony with the body's natural micro-environment.
Our founder is a visionary who believes in creating meaningful products with real-world impact.
CEO - Samuel Shannon, MEng
With over half a decade in the biopharmaceutical industry, Samuel has built a deep understanding of translating research into scalable GMP manufacturing solutions.
Driven by a passion for impactful science, he is dedicated to developing innovations that alleviate suffering, enhance quality of life, and address pressing global public health challenges.
Samuel has been inspired to start SEASILK after seeing firsthand the side effects of hormonal contraception from his partner.
Seasilk Gel Technology
Revolutionising natural protection through pH balance
Seasilk ® contraceptive gel is a vaginal pH modulator which maintains the natural acidic conditions in the vagina during and after intercourse.
These conditions are naturally inhospitable to sperm and form a protective environment.
Organic Acids
01
These natural acids are found in the human body, they provide a gentle yet effective protection, promoting skin health and intimate comfort without harsh chemicals.
Vegan Binders
02
Vegan ingredients are expertly combined to form a stable gel, holding the active components while maintaining safety and effectiveness.
03
Salts & Acidity Regulator
Salts are balanced to ensure the osmolarity of our gel aligns with the human body to maintain hydration. Meanwhile an acidity regulator maintains our optimal pH range.
Preservative
As all ingredients are food-safe, so a medical grade preservative is included for a practical shelf life.
04
SEASILK belongs to a clinically validated class of hormone-free contraception:
vaginal pH modulators,
enabling localised on-demand control without systemic hormones.
SEASILK is an independently engineered hydrogel platform designed to enable precise alignment of the vaginal micro-environment through optimised pH, osmolality & rheology.
Specifically developed for the UK regulatory pathway & quality standards to become an off-the-shelf medical device.
Commercial Roadmap
A clear regulatory pathway
for non-hormonal contraception
Seasilk is advancing through formulation optimisation, preclinical testing and regulatory preparation to meet MHRA medical device standards.
Proof of Concept
2024-25
Seasilk
Contraceptive Gel
TRL 3 & TRL 4
Pre-Clinical
Testing
2025-2026
TRL 5
UKCA Submission
2027
TRL 6
Support
Launch
2028
TRL 7
Protect
Platform
Expansion
2029
TRL 8
* TRL = Technology Readiness Level
Seasilk's Story
My mother raised my brother from the age of seventeen, facing discrimination and financial pressure as a single parent.
Despite the odds, she went on to become a fully qualified accountant while raising three children. Her resilience shaped my values and showed me how access to opportunity can change the course of a life.
At twenty, my first long term partner after 3 years began using hormonal birth control and experienced severe side effects, including mood changes and hair loss.
At the time, I didn’t fully understand what was happening or how profoundly it was affecting her wellbeing and our relationship.
Looking back, I now see how what we thought would seek protection and intimacy instead created distance, not through intention.
Asking about other's experiences I know I am not alone and that is supported by reports generated by the incredible work done at the British Pregnancy Advisory Service.
With a background in biopharmaceuticals, that experience stayed with me. It became the starting point of a journey to explore whether contraception could be effective, accessible, and gentler on the body.
That journey became Seasilk.
Shape the future with Us
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