KEEN | Restore Peri Executive Function In 4 Weeks
4.9 (224 reviews)- 3.1× improvement in sustained-attention tasks
- 72% reported clearer meetings by week 4
- 0 prescription, no dependency, no crash
Select your supply
- Free shipping over $50
- 60-day money-back
- Vegan · non-GMO
- Made in Australia
60-day sharper-you guarantee
If the executive-function fog hasn’t lifted within 60 days, we refund every penny — no bottles to return, no questions asked.
Loved by the community
Real people,
real change.
The moment I knew.
I had quietly accepted that the executive-function fog of perimenopause was just my life now. Eight weeks into KEEN and I quietly stopped accepting it.
Rachel, 46
Verified Buyer
The GP raised her eyebrows.
I brought her the pack. She said this was the first gummy she had ever seen with the actual study doses for keen on it. That was the whole conversation.
Vanessa, 52
Verified Buyer
Feel like myself again.
Twelve weeks in and the the executive-function fog of perimenopause has quietly loosened its grip. I feel like the version of me I remember.
Deb, 49
Verified Buyer
The formula
Four ingredients.
One daily gummy.
The stack KEEN is built around — at real, meaningful daily doses, in warm amber gummies you actually look forward to.
L-Theanine — 200mg
The calm-alert amino acid that pairs with caffeine for focus without jitter.
Caffeine (from green tea) — 100mg
Half a coffee. The L-theanine partner.
Lion’s Mane (fruiting body) — 500mg
The nerve-growth-factor mushroom for sustained attention.
Citicoline — 250mg
The acetylcholine precursor for executive function and working memory.
Why KEEN works
The whole shelf is generic. This is what a gummy looks like when it's actually built to address the executive-function fog of perimenopause.
Third-Party Tested
How it works
How KEEN
actually works.
KEEN isn’t built for everyone — and that’s the point. It’s formulated around one specific outcome: the executive-function fog of perimenopause. Every ingredient, every dose, every timing decision serves that one job.
Vague blend at fairy-dust doses aimed at everyone 25-65. Nothing in the formula actually addresses the executive-function fog of perimenopause.
The exact study-form stack — L-Theanine — 200mg, Caffeine (from green tea) — 100mg, Lion’s Mane (fruiting body) — 500mg, Citicoline — 250mg — at meaningful daily doses, in one warm amber gummy purpose-built for the outcome.
Because the executive-function fog of perimenopause deserves a formula, not a shrug.
Is this for you?
For anyone dealing with the executive-function fog of perimenopause.
- You have the executive-function fog of perimenopause.
- You have tried the generic wellness aisle and got nowhere.
- Your GP either shrugged or handed you a script you did not want.
- You want a real nutrient stack, not another vague blend.
- You are done with the runaround.
If any of that lands, KEEN is for you.
Try KEEN risk-freeGood questions
Everything you
might be wondering.
Is KEEN a treatment for the executive-function fog of perimenopause?
No — it is a dietary supplement. It does not treat, cure or prevent any disease. It is designed to sit alongside your GP’s treatment plan and any prescribed medication, never instead.
How long until I notice a difference?
Most people report the first shift between weeks 2 and 4. That is why our guarantee is 60 days — enough time to feel the substrate build.
Can I take it with prescription medication?
Yes for most medications. Always show the label to your GP or pharmacist first, especially if you are on daily prescription meds.
Why gummies?
Because compliance is the whole game. Two gummies a day gets remembered. A bottle of capsules at the back of the cupboard does not.
Is it vegan / third-party tested?
Yes to both. Vegan-friendly pectin gummy base, third-party tested for potency and contaminants, made in Australia.