Buy today, make 4 interest-free payments!
Start for as low as $52.75
With Shop Pay Installments, you split your purchases into four equal, interest-free payments — with no additional, hidden, or late fees, and no impact to your credit score.
Quick Approval
Get a real-time decision with no interest, no fees, and no impact to your credit score.
Get a real-time decision with no interest, no fees, and no impact to your credit score.
Easy Payments
Get a real-time decision with no interest, no fees, and no impact to your credit score.
Get a real-time decision with no interest, no fees, and no impact to your credit score.
No Hidden Fees
Get a real-time decision with no interest, no fees, and no impact to your credit score.
Get a real-time decision with no interest, no fees, and no impact to your credit score.
Paying with Shop Pay is as easy as 1, 2, 3!
Finally, you don’t have to pay for your fast all at once. Happy days! Shop Pay makes it easy to find a payment plan that suits you so you can focus on getting your fast started.
1
Add items to your cart
2
Check out with Shop Pay
3
Pay in 4 easy installments
Your first payment will be due at checkout.
The next 3 remaining installments will be automatically charged every 2 weeks to your card saved on Shop Pay . And don't worry, you'll get an email reminder before each payment to keep you in the know.
The next 3 remaining installments will be automatically charged every 2 weeks to your card saved on Shop Pay . And don't worry, you'll get an email reminder before each payment to keep you in the know.
Frequently Asked Questions
What is Shop Pay and how does it work?
Shop Pay helps you check out faster when you’re shopping in participating stores by automatically filling in your saved payment and shipping information when you enter your email address at checkout.
What is the option to pay in installments on Shop Pay?
When you check out with Shop Pay, you have the option to pay in installments. Installments are a flexible payment option that can help you invest in larger purchases up to $1000 by dividing your purchase amount into four equal, biweekly, and interest-free payments. There are no additional fees.
How does the payment schedule work?
Your first payment is due at checkout or up to 2 weeks after your purchase for approved customers. The next 3 remaining installments are automatically charged to your card saved on Shop Pay every 2 weeks.
What if I can’t pay a Shop Pay installment?
Login to your shop pay account and contact them for further assistance. Prolon and L-Nutra do not manage your installment payments, they are provided by Shop Pay and underwritten by Affirm. You may also visit https://shoppay.affirm.com/help/s/ for additional information.
Are there any additional costs to use this service?
There are no additional charges, interest rates, or late fees.
When will my items be delivered if I use a Shop Pay installment?
Items in your order will be delivered normally, depending on the shipping service selected at checkout.
Is there a limit to how much I can spend on a single transaction using Shop Pay?
Shop Pay installments can be used for purchases between $50– $1,000.
“It works—weight management, energy, and mental clarity.”
- Zaree
Verified Reviewer
"I lost 5 pounds my first round and felt amazing."
- Amy
Verified Reviewer
You may not realize it but you’re already fasting.
Every night when you go to sleep, your body goes into a fasting state. The human body was
designed to fast but modern life intervened. Tap into your natural instincts with ProLon.
ProLon 5-Day Benefits
Just 5 days of ProLon has been clinically shown to provide
Cellular Clean-up
ProLon supports the body’s natural process of cellular clean-up, triggered when it’s in a prolonged fasting state.
Fat Focused Weight Loss
Kickstart weight loss (on average 5 pounds), especially belly fat, while protecting lean body mass.
Enhance Clarity
Customers report feeling greater focus and clarity toward the end and after completing the fast.
More Energy
The majority of ProLon users surveyed said they had more energy after completing the fast.
The Prolon 5-day Journey
Day 1
Transitioning To Fasting State
Day 2
FAT BURNING & KETOGENESIS
Day 3
AUTOPHAGY CLEAN-UP STATE
Day 4
CELLULAR REJUVENATION
Day 5
RENEWAL & CHANGE
4.4
Stars
1M+ Happy Healthy Customers
Prolon 5-Day Fasting
Mimicking Program
Starting at
A patented, science-backed program that keeps your body in a fasting state while allowing you to eat nourishing foods. Over five days, your body is rejuvenated at the cellular level, supporting longevity and unlocking powerful health benefits including:
Fat loss with muscle protection
Cellular rejuvenation
Improved relationship with food
Renewed energy and mental clarity
A complete body reset
Fat loss with muscle protection
Cellular rejuvenation
Improved relationship with food
Renewed energy and mental clarity
A complete body reset
A Prolon exclusive
For a limited time receive a free one-month ClassPass trial with 50 credits with your Prolon 5-Day purchase.
Please Choose Your Flavors:
NEW
Expanded Variety
New Soup Flavor
Original Soup Flavor
+10% OFF
Save Time & Money With Our Recurring Order Option
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10% Off all orders. Cancel anytime.
Delivers every
What’s inside the box?
The Prolon FMD includes everything you need for your five days of renewal. Just follow the meal guide and eat and drink what’s in each day’s box. The foods in each box are designed to nourish your body while staying below nutrient sensing pathways, so you stay in a fasting state, and get all the benefits of fasting. Learn more about what’s inside each kit below.
HSA/FSA eligible
Pay for your Prolon purchase with qualifying HSA/FSA funds.
Programs like health savings accounts (HSA) and flexible spending accounts (FSA) enable individuals to allocate pre-tax money for qualified healthcare expenses. Prolon has partnered with Sika, allowing customers to use their HSA/FSA funds to purchase our science backed products.
- Choose pay with Sika at checkout or learn more here.
ADD THE ESSENTIALS:
