Stronger For Longer Nutrition
100% American-made premium supplements crafted in beautiful Golden, Colorado
All-Natural American-made Ayurvedic Compounds, Herbs & Proprietary Blends
FDA-Registered, 3rd-Party Tested Fair Trade & GMP Compliant. Our supplements are extra strength so you can feel the difference within days, not weeks. We stand by every one of our supplements and if you're not satisfied, we have a 30-day 100% money-back guarantee.
Veteran-Owned & Tested
As veterans, parents, athletes & more, we focus our product research to educate you - our loyal customers and community. We have a 30-day moneyback guarantee if you don't feel better after taking our stuff.
Top-notch Customer Service & Product Education
We started SFL to educate, inspire and teach people about what goes into their body. SFL is the gold standard when it comes to 1-1 customer education & support. No one does it better.
SFL Best-Sellers
NAD + & Japanese Knotweed - Cellular Energy Support
Magnesium Glycinate: Relaxation, Stress Support & Whole-Body Wellness
Shop All Supplements
30-day money-back guarantee. We'll refund you 100% if you don't feel a difference.
NAD + & Japanese Knotweed - Cellular Energy Support
Latest Blog Updates & Education
Let customers speak for us
NAD+ is awesome, boosts your mitochondria to age 21 levels, revitalizes your skin, heals your gut and is the anti-aging supplement we should all be on for life.
Big uptake in energy and staying locked in with these. Fantastic product.
Hey, this stuff I've noticed a great improvement in soreness overall. Excellent stuff SFL.
Perfect - I was taking 10,000 IU per day and felt a noticeable difference in sleep and energy levels during the winter months.
Had the flu for about two weeks - after 5 or 6 days, I was feeling much better an this was the only supplement I was taking. Nice job. Thanks guys!
Two scoops, no crash, sleep just fine. Not beta alanine to make you sweaty or itchy. Perfect wrap up for a small pre workout!
I've never slept better, I'm being absolutely honest here. Perfect for me.
These little babies have helped me with digestion, mood, appetite and focus. I'm so glad I have them in my repertoire.
Love these gummies! They help me get to sleep quickly (in about 30 mins or less) and generally not too groggy waking up. I stay asleep through the night for the most part (probably still need to optimize some other things like eating before bed, screen time, etc) but these things are amazing and (and taste good too, a nice little treat before bed haha).
I've been a beachbody pre workout fan for 10 years, so it's hard to pull me away from my staple, but in trying the SFL pre workout I have to say it is not only tasty, but also everything one would need to get through an intense workout. There is no crash or jitters and it definitely delivers!
this helps make me feel like I’m not 40. Running around with all the energy in the world off of this powder. Who would have known…
I’ve been taking these Lion’s Mane gummies daily for a couple weeks and I’ve noticed a real difference in my focus and mental clarity—especially during the midday slump when I usually lose steam. They taste great too (no weird aftertaste) Definitely a new staple in my routine!
Usually I feel tweaked out. This stuff has no crash, tastes amazing and I get a great workout in. No shakes from this
Can't believe how much weight I've lost, as well as the impacts on my daily mental clarity. Good solid product, everyone should be taking this!
Felt an immediate difference when blending in with my protein. Will be purchasing again, thank you!
What sets us apart from all the other companies? Two veterans on a quest to maximize human health & efficiency. Contact Phil & Cam or get a free health consult today. We'll share our knowledge and educate you on our beliefs, mission, products and more.
The SFL Promise & Difference
Contact us for a free health consult, to get us in your stores & more.
Health Optimization
At Stronger for Longer Nutrition, we approach effective supplementation as an optimization problem, striving to deliver scientifically backed solutions that truly work. We stand behind our products with complete confidence—if you’re not satisfied with the results after 30-days, we offer a 100% refund. Our mission is to create the change we once sought in the industry. Join us!
True Nourishment
At Stronger for Longer Nutrition, research and quality product education are our top priorities. We founded SFL to provide an alternative to low-quality supplements with ineffective formulations from overseas. Our commitment is to create products that deliver real results—free from fillers and harmful ingredients, 100% all-natural and made in the USA, ensuring optimal health and wellness for life.