For Couples · Fertility-Friendly Lubricant
FertilSafe PLUS
Enjoy intimacy with confidence, knowing sperm safety comes first
A sperm-friendly personal lubricant, formulated to mimic the body's natural fertile fluids. Clinically tested by a leading UK NHS andrology clinic to confirm it does not harm sperm or create a barrier to fertilisation.
- Discreet UK delivery, plain outer packaging
- Free from parabens and glycol
- pH balanced to support sperm safety and motility
Sperm-friendly
Does not harm sperm or stop sperm movement.
Clinically tested
By a leading UK NHS andrology clinic, using gold-standard sperm analysis.
pH balanced
Mimics natural fertile fluids to support sperm safety and motility.
Discreet applicators
Ready to use, single-use, no cleaning required.
Comfort first
Helps reduce dryness and discomfort without compromising fertility.
Why fertility-friendly lubricant matters
Not all lubricants are safe for conception
25%
Clinical research shows that around 1 in 4 couples trying to conceive experience vaginal dryness or discomfort, leading many to reach for a lubricant. But studies — including guidance from the World Health Organisation — show that many common lubricants can impair sperm function, slow sperm movement, or create a barrier that makes fertilisation more difficult.
Clinically tested for sperm safety
Tested against fertile donor sperm
In a controlled laboratory study using computer-assisted sperm analysis (CASA) — the gold standard for sperm testing — conducted at a UK NHS andrology clinic:
FertilSafe® PLUS — Best performer
Caused the smallest loss of progressive sperm movement among all commercial lubricants tested, preserving motility and swimming speed.
Standard lubricants — Underperformed
Significantly reduced sperm motility compared with FertilSafe® PLUS and sperm-safe alternatives.
Saliva — Worst performer
Caused the greatest sperm damage of everything tested in the study.
How it supports conception
Designed with both of you in mind
For Her — Comfort, naturally
Mimics natural lubrication present during the fertile window.
Helps reduce vaginal dryness, more noticeable when trying to conceive.
Supports a sperm-friendly vaginal environment.
For Him — Safety, tested
pH balanced to help maintain sperm health and motility.
Does not damage sperm or restrict movement.
For You Both — Intimacy, uninterrupted
Removes stress and discomfort from intimacy.
Helps intimacy feel more natural, relaxed and enjoyable.
Supports comfort and confidence during your most fertile days.
Is this for you?
Is FertilSafe® PLUS right for you?
- You are actively trying for a baby
- You experience vaginal dryness or discomfort
- You've used lubricants before but want a fertility-friendly option
- You want reassurance backed by clinical testing
How to use
Apply before intimacy
- Apply internally before intimacy for convenience and discretion.
- No cleaning required — simply use and dispose.
- Always follow the instructions included in the pack.
Works well alongside FertilTime®, FertilMan® and FertilWoman®.
Before you use
Important information
FertilSafe® PLUS is a personal lubricant intended for use by couples trying to conceive. It does not treat infertility and it does not increase the chance of conception.
This product is not a contraceptive and offers no protection against pregnancy or sexually transmitted infections. It is not suitable for use with latex condoms unless the pack states otherwise.
For external and internal personal use only. Discontinue use if irritation occurs. If you experience persistent vaginal dryness, discomfort or pain, speak to your GP.
Read the instructions supplied with the pack before use. Store as directed. Keep out of reach of children.
Real stories, real hope
What couples say
Easy to order and the delivery was so discreet. Will definitely be reordering.— Sample review, London
We've used babystart for both of us — the guidance made everything feel less overwhelming.— Sample review, London
Great quality products and genuinely helpful customer support when we had questions.— Sample review, Bristol
Complete your journey
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