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LONDEVITY®

Testing versus Placebo (3 months cross-over to estimate effects on YOU)

Testing versus Placebo (3 months cross-over to estimate effects on YOU)

Complete daily longevity supplement in 1 coffee + 1 chocolate

Here, we propose You to study if our Londevity Protocol is Good For You, using the science way

What is the science way?
You take the longevity protocol during close to 3 months, but the first half is placebo or the second half. What half? You don't and we don't know, until you have been tested for various health parameters before, between the two halfs, and after.

Wait, let me decompose this
- We have started to measure people before-after taking our chocolate-only protocol, but not versus placebo. Conclusions: health seems improved. Though: may it be because the consumers feel they should be healthy after the protocol and this influences their health test results? Because taking the protocol made them more careful about their health? Or because we measured a bit differently, being convinced that they are in better health?
- Here,
a) during the first half, you don't know if you are under placebo so.. you don't know if you should feel better. Probably you will take more care of your health, but this similarly whether you are under placebo or not, because you don't know. And we, the measurers, don't know either so we are not enclined to be biased when measuring you.

Is it a clinical trial?
No, this is a N-of-1 trial: you are not average, the goal is to see what it does to YOU. Now, if there are enough persons doing N-of-1 trials, we'll make statistics (stats without identifying anyone) and this is Community statistics. Good, but not enough to for health claims/reimbursments etc (it would require more careful selections of individuals at first)

Any reason not to do it?
- The placebo contains a bit of salt, to mimmic the taste of our londevity chocolates (potassium in it, more precisely). So if you have a form of hypertension that requires not to take salt, better avoid it.
- If you have lately been taking our protocol every day lately, chances are that there is not more to gain.
- You will be paying "for nothing" for half of that testing period. Well, not nothing: 1. chocolate, coffee, and not bad things inside (but no Superfood); 2. you will be given a lifetime advantage: the same cost for your remaining life! Yes, we want to encourage those who are in the same boat as us, advancing science.
- Otherwise, no particularly reason compared to taking our londevity chocolates

How to we measure you?
- IF you are or can come to Paris or London, we measure you free of charge with the TimeXtension kit, a non-invasive kit designed to assess overall health in many ways (that was validated scientifically in various ways, and notably applied to several hundred persons)
- Otherwise, we can sell you the kit at a discount price of £250 (plus shipping feels) instead of £300. It is a kit that you can then freely use as many times as you want and on as many persons as you want, because there are no renewables to buy, so it used a lot it is extremely cheap. We will organize the needed calls with you to accompany you in the measures, don't worry.
- If you have any other measures (Whoop, Blood tests, other), wonderful. What matters though is that the measuring system is the same before the first half of the test, between the two halves and after the second half.

Any other question? Contact us at customer@londevity.com We will add here questions and answers that seem relevant to all.
Cheers

Zero Sugar
zero sugar
Vegan
vegan
Nutrient Dense
50% nutrient dense
Join The Test
Regular price £300.00 GBP
Regular price Sale price £300.00 GBP
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Taxes included. Shipping calculated at checkout. 10 boxes+ shipping free
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Small-batch UK production
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30-day satisfaction guarantee
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The Break down

Brain performance

Clear thinking, smooth energy, and mental precision

Black Coffee — natural caffeine for alertness, reaction time, and clarity
L-Theanine — smooths stimulation, reduces jitter, promotes calm focus
Choline (Bitartrate) — supports memory, neurotransmitters, and brain function

Energy & Metabolic Performance

Cellular energy, endurance, and fuel efficiency

Creatine — supports ATP production, physical and cognitive performance
L-Carnitine — enhances fat metabolism and mitochondrial energy production
Ceylon Cinnamon — supports glucose control and stable energy levels

Recovery & calm

Balance, repair, and resilience

Glycine — supports sleep, recovery, and inflammation regulation
Magnesium (Bisglycinate) — promotes relaxation, muscle function, and recovery
L-Theanine — promotes calm, balanced alertness

Cellular Health & Immune Support

Long-term resilience and whole-body function

Potassium (Citrate) — hydration, nerve signaling, muscle function
Coffee Polyphenols — antioxidant defense

Amino Acids

Amino Acids

Selected amino acids work together to boost glutathione, the body's master antioxidant. Help repair damage and reserse again

N-Acetylcysteine & Glycine

N-Acetylcysteine & Glycine

N-Acetylcysteine helps replenish one of the body’s most powerful defenses against free radicals, which is crucial as we age. Glycine by itself can mimic longevity benefits of calorie restriction and support metabolic health.

Vitamins & minerals

Vitamins & minerals

Vitamins and minerals are micronutrients that support energy production for daily function, like B complex and vitamin B12

Prebiotics

Prebiotics

Prebiotics, like inulin, work together to promote the growth of healthy bacteria and gut microbiome function.

D3 Vitamin K2 Zinc

D3 Vitamin K2 Zinc

We pair D₃ with Vitamin K₂ (100 μg) to ensure calcium is directed to bones, not arteries, supporting heart health and bone density, adding Zinc for immunity, DNA repair, and antioxidant enzymes.

Customer Reviews

nutritiongems
nutritiongems external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

I love dark chocolate anyway, but these were really delicious, and contain so many good ingredients to support your health. Also, some were lip shaped! 👄 What's not to like?!

Item type Longevity Mix - Longevity Chocolates To Support Healthy Aging
Longevity Mix - Longevity Chocolates To Support Healthy Aging
tamlouisesmith
tamlouisesmith external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

I didn’t expect chocolate to become part of my wellness routine… but here we are 🍫✨.I’ve been having them consistently and I’m genuinely seeing a difference with more energy, fewer cravings, and an easy routine I actually stick to!

Item type Longevity Mix - Longevity Chocolates To Support Healthy Aging
Longevity Mix - Longevity Chocolates To Support Healthy Aging
Barbara C.
Barbara C. external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

I take Londevity Chocolate with me everywhere. It’s my little daily ritual that actually feels good for me.

Item type Slimart blend - longevity chocolates for weight management
Slimart blend - longevity chocolates for weight management
EmilyCook
EmilyCook external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

I can’t believe something this tasty is actually good for me. I used to struggle with afternoon crashes and brain fog, but since I started eating these longevity chocolates, my energy has been steady and my mind feels sharper. I feel more balanced overall, and my skin even looks clearer and more radiant. My only complaint? I now have to hide them from my husband.

Item type ImuPlus - Chocolates To Support A Strong Immune System
ImuPlus - Chocolates To Support A Strong Immune System
Martin C.
Martin C. external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

I work in sales, so my days can get pretty hectic with long hours, and a lot of stress. I used to feel drained by midday, struggling with brain fog and feeling sick far too often. I was very skeptical at first (about Londevity Chocolates), but I’ve noticed a real difference after a few weeks. My energy levels stay steady, my focus is sharper, and I actually feel more awake and alert throughout the day. Even my joints don’t ache like they used to after long hours at my desk or driving between meetings.

Item type Longevity Mix - Longevity Chocolates To Support Healthy Aging
Modern Pet Portrait – One Pet
Nancy T., CPA
Nancy T., CPA external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

As an accountant, my schedule during busy season is nonstop — I often used to skip meals or grab something quick and regrettable between client calls. By mid-afternoon, I’d be exhausted, foggy, and just running on caffeine. I started having Londevity Meal Replacement Cookies at my desk after seeing their Ads, and the difference has been amazing. They taste great, actually keep me full, and I don’t get that crash later in the day. I feel more focused, my energy stays steady, and I even have enough left at the end of the day to take my dog for an extra-long walk. These cookies have become my little lifesaver during tax season!

Item type LONDEVITY® Meal Replacement Chocolate Cookies - 3 mealsRegular price£34.95 GBP
LONDEVITY® Meal Replacement Chocolate Cookies - 3 mealsRegular price£34.95 GBP
Francesco
Francesco external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

After recovering from COVID, I struggled with constant fatigue, brain fog, and joint stiffness. I also hated swallowing pills, so taking big pills every day just wasn’t working for me. I bought a few boxes of LONDEVITY Chocolates a couple of months ago just to see what the hype was about, and I’ve been amazed by the results and I am hooked. They’re delicious, easy to take, and after a few weeks, I noticed real improvements. My energy came back, my mind felt clearer, and even my joints felt looser. I’m moving more, feeling better, and actually enjoying life again. All thanks to a bit of chocolate every day.

Item type LONDEVITY® Meal Replacement Chocolate Cookies - 3 mealsRegular price£34.95 GBP
LONDEVITY® Meal Replacement Chocolate Cookies - 3 mealsRegular price£34.95 GBP
Kaylasnutrition
Kaylasnutrition external-Tick-in-Circle-ui-glyph-silhouettes-icons-papa-vector
2024.01.17
★ ★ ★ ★ ★

It’s become part of my morning routine. I crave it less for sugar, more for that rich, satisfying taste.

Item type Joints & Collagen- Longevity Chocolates Crafted To Support Joints,Skin & Hair
Joints & Collagen- Longevity Chocolates Crafted To Support Joints,Skin & Hair

FAQs

How do I know if Londevity is right for me?

Londevity is perfect for anyone who wants to support their health in a convenient and enjoyable way. Each handcrafted chocolate is packed with nutrients that are clinically shown to help slow visible signs of aging, while also boosting daily wellness.

If you’re looking for more than just one option, Londevity comes in different varieties tailored to specific needs—whether your focus is on energy, skin health, immunity, or overall anti-aging support.

As with any supplement, if you have health conditions or take medications, it’s a good idea to check with your healthcare provider before starting.

When should I expect to see Londevity benefits?

Results may vary depending on the individual. Some people notice benefits within a few days, while for others it may take a few weeks of consistent use.

What kind of benefits can i expect from taking Londevity

Londevity chocolates are crafted to deliver the power of over 20+ supplements in every piece. Depending on the variety you choose, benefits may include:


  • Anti-Aging Support – nutrients that help reduce visible signs of aging and promote healthier skin.

  • Energy & Vitality – ingredients designed to fight fatigue and keep you feeling active throughout the day.

  • Immune System Boost – vitamins and minerals that help strengthen your natural defenses.

  • Skin, Hair & Nail Health – antioxidants and collagen-supporting nutrients for a youthful glow.

  • Overall Wellness – a balanced mix of essentials to fill nutritional gaps in your daily routine.

Because Londevity comes in different varieties, you can choose the formula that best fits your lifestyle and health goals—all while enjoying a handcrafted piece of premium chocolate.

What makes Londevity different from other nutritional products?

Unlike typical supplements that come as pills or powders, Londevity delivers the benefits of 20+ essential nutrients in the form of handcrafted premium chocolate. But what truly sets it apart is the science and expertise behind it.


  • Well-Researched Anti-Aging Formula – developed using cutting-edge research on nutrients clinically shown to help slow visible signs of aging.

  • Created by an Expert – formulated under the guidance of the Director of the London Longevity Research Institute, ensuring every piece is backed by science, not just marketing.

  • Variety of Options – tailored blends for energy, immunity, skin health, or overall vitality.

  • A Treat, Not a Task – instead of choking down pills, you’ll look forward to your daily dose of wellness in chocolate form.
What products does Londevity replace?

Depending on the variety you choose, each piece can replace or reduce the need for:


  • Multivitamins – covering essential daily nutrients.

  • Anti-Aging Supplements – antioxidants and ingredients shown to help slow visible signs of aging.

  • Skin, Hair & Nail Formulas – collagen-supporting nutrients for a youthful glow.

  • Immune Boosters – vitamins and minerals that strengthen your defenses.

  • Energy & Vitality Supplements – ingredients that help combat fatigue and support daily performance.
How many chocolates should i eat per day

We recommend 4 pieces daily for full coverage of our longevity-focused nutrient blend.

Is this chocolate actually healthy?

Yes. Each bite is made with 85% dark chocolate, packed with functional ingredients like glycine, L-cysteine, taurine, flax, chia, collagen, and red botanical extracts. It’s indulgent, but with purpose.

Where is it made?

Formulated and handcrafted in London, UK by the London Longevity Clinic.

Can i take them with other supplements or medications?

Always check with your doctor if you’re on medication, pregnant, or managing a condition. LONDEVITY™ is food-based, but it's always best to consult if in doubt.

Is this vegan or allergen free?

Not vegan (contains collagen), and may contain traces of soy or nuts. It is gluten-free and made without added sugar.

What's actually inside these chocolates?

Here’s the key ingredients list:

85% dark chocolate, plus our Longevity Blend of glycine, flax & chia seeds, collagen, cinnamon, cysteine, taurine, natto, red fruit or botanical extracts, and essential nutrients.

All blended with coconut oil and cocoa butter for texture and bioavailability.

Ingredients list

Clinically dosed ingredients

Designed around evidence-based ranges used in human studies:

Creatine — 3.5 g
Supports strength, ATP production, and cognitive function.

Leucine — 3 g
Key trigger for muscle protein synthesis.

Glycine (2.8 g) + Cysteine (1 g)
Supports glutathione production, detox pathways, and recovery.

Chia + flax — 5 g
Provides fiber and omega-rich compounds for inflammation balance.

Inulin / acacia fibre — 1 g
Prebiotic support for gut microbiome.

Potassium citrate — 1 g
Supports hydration and cellular signaling.

Magnesium bisglycinate — 0.3 g
Supports muscle function, recovery, and nervous system balance.

Fruiting-body mushroom blend — 1.3 g
Lion’s mane (neurogenesis) + cordyceps (oxygen utilization & performance).

Cinnamon — 0.5 g
Supports glucose metabolism.

Red fruit extracts — 0.5 g
Polyphenols for cardiovascular and antioxidant support.

Multivitamin-mineral complex — 0.5 g
Broad micronutrient coverage, including vitamin D and methylfolate.

Dark chocolate (daily portion)
Polyphenols + delivery system for sensitive nutrients.

Help Build the Future of Longevity

Built in London • Backed by longevity science

We’re not just building a chocolate. We’re building a new category: functional longevity food. And we’re looking for the right people to grow with us.

Host

Event & Venue Partners

Bring the Londevity experience to your London-based audience

Collaborate

Distribution & Media

Scale our reach through retail, content, or co-branding

Invest & Advise

Strategic Growth

Join our journey as a strategic operator or investor.

Innovate

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Help us refine the science. Get early access & rewards.

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