Perimenopause brain fog is real. Here's what can help.
Losing words, losing your train of thought, tired by mid-afternoon. One stimulant-free sachet a day with creatine, electrolytes, magnesium and vitamin B5.
90-day money-back guarantee · Free shipping
As featured in
Nikiand 40,000+ others purchased
Sound familiar?
You're not losing it. Your hormones are changing.
In your 40s and early 50s, falling oestrogen affects more than your periods. Many women notice changes in their memory, focus and energy too.
- You lose words mid-sentence.The word is right there, and then it isn't.
- You walk into a room and forget why.Small slips that never used to happen.
- You're tired, even after a full night.Night sweats and broken sleep add up.
It's common, it's real, and it's not your fault.
Why it happens
Why your brain feels foggier.
- Oestrogen helps power your brain.It helps your brain turn food into energy.
- As oestrogen drops, your brain gets less energy.That can feel like brain fog and tiredness.
- Creatine gives your brain extra energy to draw on.Think of it as a backup battery for your brain.
That's why creatine is getting so much attention for this stage of life.
What the research says
Early, but promising.
In a small study in 2025, women aged 40 to 60 took creatine for eight weeks. They felt less tired and found it easier to concentrate. It's early research, so we won't oversell it.
- Strong evidenceMuscle and strength.Creatine plus strength training helps women keep muscle as they get older.
- Growing evidenceMemory.Studies show it can help memory, especially as we get older.
- Early researchBrain fog and tiredness.Early studies look promising. Bigger studies are on the way.
We'd rather tell you what's proven than oversell it.
The science
“Creatine is one of the most rigorously studied compounds in sports science. Combined with targeted electrolyte and cellular support, the difference in daily readiness and performance is measurable — and compounding.”
Dr Tom GurneyChief Science Officer
What's inside
More than creatine. Built for this stage of life.
We built Cognition & Performance around 5g of creatine, then added what a demanding day also needs: hydration, steady energy and support for your cells.
- Creatine (Creapure®)5gIncreases physical performance in successive bursts of short-term, high-intensity exercise. Research also links creatine to mental performance, especially after poor sleep.
- Electrolyte complex1,285mgWhether you've dehydrated overnight or need to rehydrate after a workout, this electrolyte complex helps reduce tiredness, improves cognitive function and keeps your muscles working normally.
- Vitamin B55mgContributes to mental performance and the reduction of tiredness and fatigue.
- Selenium50µgContributes to the protection of cells from oxidative stress.
- Taurine1,000mgHelps soothe coffee jitters and calm the nervous system.
- L-Carnitine500mgSupports energy at a cellular level.
Six ingredients. One sachet. No stimulants.
Your new morning
What your day looks like now.
- 07:00One sachet in 500ml of water.Rehydrate after a night of broken sleep or night sweats.
- 09:00Into your day.Your creatine is working, giving your brain extra energy to draw on.
- 15:00Through the afternoon.Magnesium and vitamin B5 contribute to the reduction of tiredness and fatigue.
One glass, every morning.
Reported results
What our customers told us.
We asked 65 people how they felt after 45 days of one sachet a day.
- 88% report more stable energy and output
- 86% report more mental clarity and drive
- 78% report no more crashes
- 84% report recovering faster
*Based on self-reported data of 65 participants after 45 days of use 8hours Cognition & Performance. Individual results may vary.
- ★★★★★
Finally! A tasty way to take creatine
This tastes so delicious and natural and has been a great way to get my creatine in.
- ★★★★★
No coffee jitters?!
This has worked magic for me. I used to get quite bad anxious caffeine jitters but this has massively helped smooth these out and just add a backbone to the alertness I get from my coffee.
- ★★★★★
My day doesn't start without it
Coffee always been my go-to to pick me up in the morning but C&P is what actually carries me deep into the afternoon. My productivity has been so consistent.
What to expect
What to expect, week by week.
Creatine works by building up in your body, so give it a few weeks.
-
Week 1
A simple daily habit.
One sachet in water, every morning.
-
Weeks 2–4
Your creatine stores fill up.
Taken daily, 5g a day tops up your stores over three to four weeks.
-
Month 2 onwards
Your new baseline.
This is when most people say they notice the difference.
That's why you get 90 days to decide.
Hear it from people who take it every day.
-
Focus & Productivity
-
Stable Energy
-
Mental Clarity & Sleep Deprivation
-
Hydration & Energy
-
No coffee jitters
The comparison
How we compare to buying them separately.
Cognition & Performance
Generic creatine and electrolytes
All of this for £1.28 a day.
Try it risk-freePlease read
This isn't a replacement for medical care.
Cognition & Performance is a food supplement, not a treatment for menopause. If your symptoms are affecting your life, speak to your GP about your options, including HRT. If you take any medication, check with your doctor first.
Our promise
Try it for 90 days. If it's not for you, get your money back.
Creatine takes a few weeks to build up, so we give you three months to decide.
- 90-day money-back guarantee.Long enough to feel the difference properly.
- Free shipping.Delivered to your door.
- Pause or cancel anytime.No lock-in, no minimum term.
This Black Friday
Three months of sachets. Plus the welcome kit.
Your first delivery brings three 30-sachet boxes of Cognition & Performance, with the welcome kit free in the same box.
3-Month Supply
Cognition & Performance
30 sachets a box. 5g Creapure® creatine, electrolytes, vitamin B5 and selenium. Stimulant-free.
-
Free
Running Hat
£30Free -
Free
Glass Bottle (500ml)
£20Free -
Free
Nose Strips
£25Free -
Free
Members Keychain
£15Free -
Free
Free Month ClassPass
£35Free
£125 in free gifts, in the box with your first delivery.
Black Friday offer
Start your 90 days, plus £125 in gifts.
- Free Welcome Kit (£125 in value)
- Lowest price per serving
- Free Shipping
- Cancel or pause anytime
- 90-Day Money-Back Guarantee
Sauna Hat
Members Shoulder Bag
- Cancel or pause anytime
- 90-Day Money-Back Guarantee
Royal Mail Tracked · 2–4 Working Days
Questions
Is this a subscription?
Yes. It's a 3-month plan, delivered every 3 months. Pause or cancel anytime.
Can I take it alongside HRT?
Cognition & Performance is a food supplement, not a medicine. If you're on HRT or any other medication, check with your doctor before you start.
Is creatine safe for women?
Creatine is one of the most studied supplements in the world, with a strong safety record at 3–5g a day in healthy adults. If you have a medical condition or take medication, check with your doctor first.
Will it make me gain weight?
Creatine doesn't add fat. It draws a little water into your muscles, which some people see as a small change on the scales in the first weeks. At 5g a day, without a loading phase, most people don't notice it.
How long until I notice a difference?
You rehydrate from the first glass. Creatine builds up over time: taken every day, 5g tops up your stores over three to four weeks, which is why we give you 90 days to try it.
What if it's not for me?
You're covered by our 90-day money-back guarantee.