Alex Krieger

I partner with CEOs and senior executives to design personalized longevity strategies that unlock peak performance and sustained vitality. Through cutting-edge protocols, precision health optimization, and evidence-based interventions, I help high-performers achieve a biological age 15 years younger than their chronological age.

My approach combines advanced diagnostics, tailored nutrition and fitness programming, stress resilience techniques, and regenerative therapies to ensure leaders maintain their competitive edge while extending their healthspan. 

The result: executives who lead with enhanced mental clarity, physical strength, and sustained energy. Not just for years, but for decades to come.

Specializing in discrete, time-efficient solutions that integrate seamlessly into demanding schedules, I enable transformational health outcomes without compromising professional commitments.

Founder / Longevity Architect

Mozza

I invest in and advise early-stage startups.
This is my portfolio:
- Blok
- Nurra Health
- OpenHealth Technologies
- Kursinsel
- Notch
- Formel Skin
- Mister Balcony
- ThinkImmo
- CrossLend

Angel & Advisor

Interim Head of Growth

FORMEL Skin

FORMEL Skin is backed by Singular, Heal Capital, Cherry Ventures and Heartcore Capital. Recent series A funding of €30m. A HealthTech start-up offering customised, high-quality, medical treatments online.

VP of Product

nuture

I always had a passion for healthy nutrition. I was invited to kitchen town, a food accelerator and developed two products and brought them to market.

1. nuture

- Goal: Build the perfect portable meal with organic paleo ingredients
- Started working on nuture as a side project in 2016 because of my own pain as a commuter
- Implemented results of more than 676 scientific studies
- Became a certified nutritional coach with Precision Nutrition
- Sourced and tested more than 100 ingredients world wide
- Build a formula with 25 ingredients that contain all 26 essential vitamins, minerals and amino acids
- Combined and calculated >2000 data points to make the formula perfect
- Tested and launched nuture with > 200 people

2. munchy

Goal: Develop a sugar free cereal for everyone who loves cereals but has dietary restrictions and/or wants to eat healthier

- Developed a new formula for sugar free cereals with erythrit, inulin and stevia
- Tested with over 1000 participants and got 5 star ratings
- Bootstrapped to 1000+ subscribers with 40+ 5 star reviews from customers
- Terminated because of increased prices and supply shortage due to Covid

Founder

volders GmbH

✓ Assumed leadership of engineering department and successfully orchestrated complete tech stack refactoring, resulting in 10x improvement in development velocity
✓ Drove revenue growth w. marketing of over 300% through strategic initiatives and service optimization
✓ Grew a platform serving 3+ million customers while maintaining exceptional customer satisfaction (4.9/5.0 rating)

Volders is an innovative online service that allows users to conveniently cancel, organize and access their personal contracts (such as phone, energy or gym memberships) anytime from anywhere. Be in the know about all of your contracts’ remaining terms and how much you are paying for them. volders automatically reminds you about upcoming deadlines and informs you if there’s a better deal for you to be made.

Chief Product Officer (CPO)

smava GmbH

✓ Pioneered the first credit-to-go service and established strategic partnership with mobile.de, resulting in significant sales volume expansion
✓ Built and led the company's first growth team, driving continuous improvement in conversion rates
✓ Played key role in securing €65M Series C funding by generating over €600M in additional sales volume

Smava is Germany’s leading loan portal makes personal loans transparent, fair, and affordable for consumers. Based on digital processes, smava provides a market overview of 70 loan offers from 25 banks, ranging in value from €1,000 to €120,000. In 2017, the volume of loans originated through smava was c. $1.5 billion, with a total of more than $3 billion since inception. As one of the largest Fintech businesses in Germany, smava employs 300 staff with 36 nationalities under the direction of an experienced management team with strong backgrounds in finance and technology.

Growth Lead

CrossLend

✓ Led comprehensive business validation and market analysis, successfully driving strategic pivot from B2C to B2B model
✓ Optimized conversion rates across landing pages and registration funnels, achieving 30% improvement in user acquisition
✓ Spearheaded product discovery initiatives in collaboration with Head of Product, defining core product strategy and market fit

Crosslend aims to unlock capital stuck on banks’ balance sheets, giving both private clients and SMEs across Europe better access to financing, helping promote economic growth within the EU and taking a significant step towards establishing a Capital Markets Union.

Lead Product Marketing Manager

konversionsKRAFT (Web Arts AG)

✓ Led interdisciplinary product teams, driving growth across multiple clients and projects
✓ Spearheaded concept development and successful relaunch of Deutsche Telekom Cloud
✓ Designed and implemented UX strategies for Telefonica O2 and their subsidiary brand blau.de
✓ Achieved over 100% conversion rate improvement for Germany's largest direct insurance
✓ Delivered comprehensive optimization services including:
- Strategic website relaunches
- In-depth UX audits
- Data-driven A/B testing programs
- Persona development workshops
- User behavior analysis and research

With an estimated 15 bn € revenue in charge for optimization and over 40 consultants, Web Arts is on of the leading conversion optimization service providers worldwide. Operating under the brand of "konversionsKRAFT", the company works for major german and international brands, most of them Top 100 retailers, financial, travel and internet industry. Web Arts' founder and CEO André Morys is known as an international keynote speaker and is regarded as on of the Top 10 international influencers in the topic of conversion optimization.

Senior Conversion Consultant

Want to live longer, feel sharper, and perform at your peak for decades? 

I’m here to guide you, sharing science-backed strategies to extend your healthspan. 

Without chasing fads or disrupting your busy life.

Here’s what you’ll discover through my content:

✅ Simple ways to boost your energy, focus, and resilience, tailored to your demanding schedule
✅ Evidence-based habits to optimize your healthspan, so you thrive well into the future
✅ Practical tips to integrate longevity practices, whether you’re traveling or leading high-stakes projects
✅ Inspiration to extend your productive years while feeling vibrant every day

No extreme biohacking or quick fixes here. Just straightforward, sustainable habits designed for your unique biology.

Here’s what others like you have achieved through applying my content:

"I went from afternoon slumps to all-day energy and sharper focus in just weeks." — Fabian L., Entrepreneur

"These strategies added hours to my day and made me feel years younger." — Thomas D., Psychologist

"The routines I adopted gave me more energy and clarity to crush it daily." — Robert S., Public Speaker & CEO

Ready to redefine aging and unlock your best self? Follow me for daily tips, insights, and inspiration to optimize your health and live a longer, fuller life.

Let’s make longevity your edge! 

Connect with me for the latest on longevity and peak performance optimization.

Alex K.

I know people who spend $30,000 on stem cell therapy. 

Did you know your body can do this for free? I'm doing it right now!

You're looking at an ice bath photo.

But I'm not talking about cold exposure today.

I'm talking about something FAR more powerful for regeneration.

Something that costs $0.

Let me explain.

I know people that pay $30,000 for stem cell injections. 

It's even available in Europe.

But in 2014, Dr. Valter Longo at USC discovered something remarkable:

Your body already knows how to regenerate stem cells.

You just have to give it the right signal.

𝗧𝗵𝗮𝘁 𝘀𝗶𝗴𝗻𝗮𝗹? 

Prolonged fasting.

Here's the science:

- When you fast for 3-5 days, your IGF-1 plummets. 
- This inhibits PKA, an enzyme that normally keeps stem cells dormant.
- With PKA suppressed, your stem cells wake up.
- They start regenerating.
- Old, damaged immune cells get cleared out.
- New ones take their place.

The data is compelling:
→ Stem cells increase approximately 6-fold 
→ Biological age reduced by 2.5 years (after 3 cycles) 
→ Immune system literally rebuilds itself

The magic happens AFTER the 72-hour mark. 

That's when your body completes the metabolic switch.

And when you start eating again? 

That's when stem cells EXPLODE with proliferation.

Fasting might be the most underrated regeneration tool you have.

And it's completely free.

I'm on day 3 right now and will be finished by Saturday :)

Do you want to try this instead of spending $30,000 on stem cell therapy?

I have created a 5-day fasting guide with special electrolytes, pre- and refeeding cycles, etc.

This is also the guide I use for my clients.

Write a comment and I'll send you the guide via DM.

Longevity Architect for CEOs | Perform, Feel & Look 15 years younger | Ex-Tech Executive | Angel Investor

You are tired. You know that you need to improve your sleep.

But most sleep advice is garbage. Here's what works.

The problem isn't that you don't value sleep.

It's that you haven't made it your identity.

Here's my mindset shift that changed everything:

I stopped being "someone who sleeps when possible."

I became a professional sleeper!

And my performance exploded.

The Protocol:

→ Schedule sleep like your most critical meeting
No "just this once." 
It's a sacred time.

→ Set TWO alarms (not for waking up)
9 PM: Wind-down begins 
10 PM: Lights out
That hour is non-negotiable transition time.

→ Replace scrolling with reading 30 minutes before bed. 
Your mind needs decompression, not dopamine hits.

→ Create a sleep sanctuary 
Blackout curtains Cool temp (65-68°F / 18-21 Celsius) 
Complete darkness 
White noise if needed

→ Cut caffeine at noon 
Not because you can't fall asleep. 
Because your DEEP sleep gets destroyed.

My results after 90 days:
- Sharper decision-making in high-pressure moments 
- Better emotional regulation with my team 
- Consistent energy from 6 AM to 6 PM 
- HRV improved by 23 points

Sleep isn't recovery.

It's your performance and longevity enhancer.

The best CEOs and executives I know treat it that way.

What's stopping you from becoming a professional sleeper?

Hey friends 👋 I spent the past few weeks soaking up some sun.

Back in Berlin (winter) and also on LinkedIn now 😊

3tech GmbH

"Driving Growth Through Experimentation" – We help mission driven eCommerce brands to optimize their online-shop.

Our goal is to help your business grow sustainably online and turn your existing visitors into customers and clients.

We increase revenue for online stores by making it easier for customers to find the right products and purchase.

We use behavioural psychology to understand what makes them or prevents them from buying, then test ideas of how to change their behaviour using A/B-Testing.

If you are ready to start leveraging the power of experimentation to drive more growth, let's talk. Schedule a free discover call by clicking the link down below.

Managing Director, Founder

GrowthMentor

Growth Mentor

Conversion Stash

The Most Comprehensive Resource Directory for CRO Practitioners

Co-Founder

CRO Circle

100+ members on Meetup
CRO & Experimentation Community
Sign up for free -> https://www.meetup.com/cro-circle/

Initiator

Nils Koppelmann IT-Dienstleistungen

In May 2015 only weeks after my A-levels I finally decided to make my sole proprietorship official. 
Starting with basic IT-support for various businesses in the area I quickly progressed to offering my webdesign and -development services to clients.

Over time this transformed into me consulting businesses regarding their digital strategies and IT infrastructure.

Some of the bigger clients I initally worked with are now also clients of 3tech, my other company where we help businesses make an impact through digital marketing and design.

All my and our efforts are based on a strong understanding and more so identification with the technologie enabling change that drives our world forward.

Freelance Consultant

Result: Relieved colleagues by taking over research, data-aggregation, business reportings and presentations.

Project Management Consultant

Driving Growth Through Experimentation | Conversion Rate Optimization | A/B-Testing

Stop the guesswork. Start experimentation. Start winning.

I launched 3tech in 2017 as a boutique dev studio. After countless app, website and shop builds I learned one hard truth: beautiful sites rarely pay the bills – high-converting ones do. That insights pulled us from pixels and code into full-funnel, data-driven Conversion Optimisation!

Today we partner with mission-driven online retailers to stand up and optimise full-funnel testing programs:
* Audit data stack & analytics → ensure clean baselines
* Design an experimentation roadmap tied to relevant KPIs
* Train in-house teams on hypothesis writing, test set-up, process & stats
* Provide fractional CRO leadership and QA for every live test
* Systemise learnings so wins compound quarter after quarter

Result: a self-sustaining culture where A/B tests aren’t ad-hoc projects but part of a repeatable growth process.

Want to see what a disciplined testing program could unlock for your store? DM me or book a free 30-min roadmap call via the link the featured section. Let’s architect a testing engine that scales with your ambitions.

taplio

The Battle

Alex K.

Nils Koppelmann

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