← All providers

System Labs vs Viking Man NAD+

Compare pricing, features, and medications to find the best GLP-1 provider for your weight loss journey

System Labs vs Viking Man NAD+: Overview

Choosing between System Labs and Viking Man NAD+ for GLP-1 weight loss medication? Both are popular providers, but they differ in pricing, medication options, and service features.

System Labs offers both semaglutide and tirzepatide at $149/month with a rating of 6.5/10. Viking Man NAD+ offers NAD+ at $48/month with a 6/10 rating.

The price difference of $101/month is significant - Viking Man NAD+ is the more budget-friendly option, while System Labs positions itself as a premium service.

Our recommended brand

After reviewing all 148 providers on this platform, we've identified CoreAge Rx as offering the most transparent pricing model. At just $99/month — the same price every month, every dose — there are no surprise charges or hidden fees. Combined with exceptional service quality, personalized support, and access to both semaglutide and tirzepatide, it represents the best value without compromising on care.

Visit CoreAge Rx →Read full review

At a glance

Price Difference

$101/mo

Rating Difference

0.5

Winner

System Labs

Best For

Quality

System Labs

View full System Labs review →

Rating

6.5/10Better

Monthly Price

$149

Medications

NAD+sermorelinglutathioneMIC + B12GHK-Cu

Pros

✓Prices are published openly for every product, with the renewal rate shown alongside the introductory one: NAD+ $89 first month then $149, sermorelin $109 then $219, glutathione $79 then $149, oral sermorelin $79 then $159, MIC + B12 $89/mo and GHK-Cu cream $109/mo (checked July 28, 2026)
✓Three delivery formats for NAD+ - injection, nasal spray and liposomal liquid - so needle-free options exist
✓Products are described as American made and third-party tested
✓The intake is short and a licensed provider reviews it before anything ships, with free 2-day shipping
✓No insurance required and no membership fee stacked on top of the product price

Cons

✗This is not a GLP-1 weight loss service. System Labs sells no semaglutide, no tirzepatide and no GLP-1 of any kind - the words do not appear anywhere on its site. If you are shopping for weight loss medication, this provider cannot supply it
✗We could not find any statement that the compounded peptides are not FDA-approved. That disclosure is standard across this category and its absence is the single biggest gap on the site
✗There is no refund or cancellation policy published at all - only a privacy policy and terms page
✗No independent review signal exists: no Trustpilot profile, no BBB file, and no rating displayed on site
✗Introductory pricing roughly doubles at renewal on most products, and the renewal price is the one you will pay for the rest of the course
✗Sermorelin, GHK-Cu and high-dose NAD+ have limited published human trial evidence for the benefits implied - 'perform 10 years younger' style claims are not supported by the kind of trials that back GLP-1 medications
✗No published phone number, support hours or physical address
✗The 'up to 1600mg' NAD+ potency claim is presented as an advantage without any evidence that higher doses produce better outcomes

Choose System Labs

Viking Man NAD+

View full Viking Man NAD+ review →

Rating

6/10

Monthly Price

$48Cheaper

Medications

NAD+

Pros

✓It cites its sources. Fourteen PubMed and journal references are linked directly from the claims they support, which is far more than any competing longevity brand we have reviewed
✓It explicitly disclaims celebrity endorsement: 'Dr. Conlon, David Sinclair, Joe Rogan, all other referenced quotes, and studies does not endorse the claims, views, statements, or products offered by Viking Man'
✓The product is described as 'compounded and made-to-order by a licensed pharmacy' rather than being passed off as a manufactured drug
✓The standard FDA disclaimer is present - statements not evaluated by the FDA, not intended to diagnose, treat, cure or prevent any disease
✓A published phone number, a real Utah street address and an email address
✓Free shipping on US orders, the prescription is included in the price, and the company advertises free unlimited doctor follow-ups
✓State eligibility is checked before you can sign up, so you find out early if you are outside the service area
✓NAD+ sits alongside a broader men's health service (ED, hair, sleep), so there is somewhere to go if NAD+ is not the right answer

Cons

✗The advertised '4.9 (2700+ Reviews)' does not match the verifiable Trustpilot score of 3.0 from 3 reviews
✗The citations look rigorous but do not support the claims made. Reference *6, used for 'helps with metabolism and weight loss', is a study of a NAD+ intermediate in diet- and age-induced diabetes in MICE. Others are mechanistic papers or literature reviews, not human outcome trials
✗'Turn Back The Biological Clock', 'Slowing & Reversing Aging Has Never Been Simpler' and claims about repairing DNA are strong anti-aging assertions that no NAD+ product has demonstrated in humans
✗'Shown to help with weight loss' and 'Lose weight easier' appear repeatedly. NAD+ is not a weight-loss treatment, and if that is what you are looking for this is the wrong product
✗Heavy artificial urgency throughout: 'In Stock (67)', 'Selling Fast: 82 Packs Sold In Last Hour', 'Back In Stock - Order Now', and a delivery-date countdown
✗The headline price is a 79% discount - $47.99 marked down to $10 per dose - presented as the standing offer rather than a genuine limited promotion
✗Pricing is per dose with no published pack size or dosing frequency, so the actual monthly cost is unknowable until after you sign up. The figure shown here is the regular per-dose price, not a monthly total
✗The page says 'FDA Registered Pharmacy' but never states the consequence - a registered facility is not the same as an FDA-approved medicine, and this compounded product has not been evaluated by the FDA for safety, efficacy or quality
✗The David Sinclair 'fountain of youth' quote is placed prominently at the top of the page while the non-endorsement disclaimer sits in fine print at the very bottom
✗Evidence that injected NAD+ produces meaningful anti-aging, cognitive or metabolic benefits in healthy adults remains limited

Choose Viking Man NAD+

Feature-by-feature comparison

Feature	System Labs	Viking Man NAD+
Monthly Price	$149	$48
Rating	6.5/10	6/10
Medications	NAD+, sermorelin, glutathione, MIC + B12, GHK-Cu	NAD+
Insurance Accepted	No	No
Support Hours	Medical team availability advertised; hours not published	Not published
Live Chat	Available	No
Free Shipping	Yes	Yes
Shipping Speed	Free 2-day shipping	Free shipping on US orders; monthly at-home delivery
Mobile App	No	No
Dedicated Coach	Not included	Not included
Follow-up Frequency	Ongoing clinician support advertised; frequency not published	Company advertises free unlimited doctor follow-ups
Money-back Guarantee	None published	None published
Cancellation Policy	Not published	Monthly delivery; terms not published pre-signup

Which should you choose?

Choose System Labs if you:

→Prefer a higher-rated service (6.5/10 vs 6/10)
→Want more medication options to choose from
→Value: prices are published openly for every product, with the renewal rate shown alongside the introductory one: nad+ $89 first month then $149, sermorelin $109 then $219, glutathione $79 then $149, oral sermorelin $79 then $159, mic + b12 $89/mo and ghk-cu cream $109/mo (checked july 28, 2026)

Get started with System Labs

Choose Viking Man NAD+ if you:

→Want to save $101/month with a more affordable option
→Value: it cites its sources. fourteen pubmed and journal references are linked directly from the claims they support, which is far more than any competing longevity brand we have reviewed

Get started with Viking Man NAD+

Website previews

System Labs

System Labs website

Viking Man NAD+

Viking Man NAD+ website

Our recommendation

System Labs comes out ahead with a higher rating of 6.5/10. It also provides multiple medication options including both semaglutide and tirzepatide.

Get started with System Labs

Related comparisons

System Labs vs CoreAge Rx

System Labs vs Zepbound

System Labs vs Mounjaro

System Labs vs Wegovy Pill

System Labs vs Foundayo

System Labs vs Wegovy

System Labs vs NovoCare Pharmacy

System Labs vs Ozempic

System Labs vs Form Health

System Labs vs Henry Meds

System Labs vs Sesame Care

System Labs vs FuturHealth

System Labs vs Circle Medical

System Labs vs Ro

System Labs vs Midi Health

System Labs vs Noom Med

System Labs vs Precision Telemed

System Labs vs Hims

System Labs vs Calibrate

System Labs vs PlushCare

Compare other providers

Compare GLP-1 Brands

First Brand

vs

Second Brand