If you're exploring NAD+ boosters and longevity supplements, two names that come up repeatedly in serious supplement circles are OMRE and Pure Encapsulations. Both brands appear credible, science-focused, and committed to quality manufacturing, but they take different approaches to the same question: how do you support healthy cellular aging?

OMRE uses NMN (nicotinamide mononucleotide) as its NAD+ precursor and pairs it with a high-dose, bioavailability-enhanced resveratrol in a clean, focused formula. Pure Encapsulations NR Longevity instead uses NR (nicotinamide riboside) in the patented NIAGEN^® form, pairs it with a moderate resveratrol dose, and adds broccoli sprout extract standardized for sulforaphane for a broader cellular defense approach.

Choosing the right supplement depends on whether you prioritize raw ingredient doses, formula breadth, or specific NAD+ precursor research. In this comparison, we'll break down ingredient quality, dosing, testing, price, and overall value to help you make an informed decision.

Key Takeaways:

• OMRE uses NMN with high-dose resveratrol and BioPerine^®, focusing on potency, absorption, and a minimal three-ingredient formula.
• Pure Encapsulations uses NR with resveratrol and sulforaphane, offering broader cellular support through additional antioxidant pathway activity.
• Both NMN and NR appear to raise NAD+ levels effectively, with differences mainly in dosage, supporting ingredients, and research focus.
• OMRE provides higher doses of NMN and resveratrol per serving, while Pure Encapsulations offers flexible dosing and added formula diversity.
• The better choice depends on your priorities, whether that is higher potency and transparency with OMRE, or broader multi-pathway support and clinical NR research with Pure Encapsulations.

Quick Comparison Table

To help you quickly compare the core differences, the table below summarizes key factors including ingredients, dosing, testing transparency, and overall value.

Detailed Comparison

Below, we break down each key factor, from ingredient quality and dosing to testing, transparency, and price, so you can see exactly how OMRE and Pure Encapsulations compare.

Ingredient Quality

Both brands appear to clear the bar that matters most in the NAD+ supplement space: quality and purity. OMRE's formula uses 99% pure NMN and 98% pure micronized trans-resveratrol, with purity figures printed on the supplement facts panel and verifiable through publicly available COAs. Pure Encapsulations uses NIAGEN^®, a very well-studied NR ingredient, alongside trans-resveratrol and broccoli sprout concentrate.

Where they diverge is in philosophy, not standards. OMRE keeps the formula tight: NMN, resveratrol, and BioPerine^®. BioPerine^® is a standardized piperine extract from black pepper that has been shown to enhance resveratrol bioavailability. The approach is intentionally minimal, with no extra compounds or bundled ingredients beyond the core actives.

Pure Encapsulations takes a broader view. Its formula combines NIAGEN^® nicotinamide riboside with trans-resveratrol and 200 mg of broccoli sprout concentrate standardized to 800 mcg of sulforaphane. Sulforaphane activates the Nrf2 transcription pathway, which helps drive the body's own antioxidant enzyme production, including glutathione, superoxide dismutase, and catalase. This is a cellular defense pathway that neither NMN nor resveratrol directly targets in the same way, which may give Pure Encapsulations an advantage in formula scope.

One honest caveat: Pure Encapsulations' resveratrol dose is 150 mg per serving without an absorption enhancer, compared to OMRE's 500 mg with BioPerine^®. If resveratrol is your primary target, OMRE appears to provide substantially more per serving with stronger absorption support.

Edge: Pure Encapsulations for formula breadth and the addition of sulforaphane. OMRE for resveratrol dose, verified purity, and absorption support.

Dosing

Dose matters a lot in this category. NAD+ precursor supplements that fall below studied thresholds may be less likely to produce measurable physiological effects, and much of the supplement market still operates below clinically relevant levels.

For NMN, human clinical research has used doses ranging from 250mg to 1,200mg per day (1).

A 12-week randomized controlled trial published in NPJ Aging (2022) found that 250mg/day NMN in healthy older men aged 65 and up significantly elevated blood NAD+ levels and partly improved muscle function, including gait speed and grip strength, with no serious adverse events reported (2). OMRE's 500mg sits comfortably within the clinically meaningful range and is close to doses that have shown measurable benefits in published trials.

For NR, NIAGEN^® has been studied across multiple human trials at doses ranging from 250mg to 1,000mg per day. A 2018 study in Nature Communications found that 1,000mg/day of NR robustly elevated whole-blood NAD+ in healthy middle-aged and older adults (3). Pure Encapsulations provides 300mg NR per 2-capsule serving, which can be taken once or twice daily per the label.

At once-daily dosing, 300mg is at the lower end of the studied range. At twice-daily dosing, or 600mg total, it aligns more closely with moderate-dose research. This dosing flexibility can be useful, but it also means the per-serving cost comparison needs context because at twice-daily dosing, the effective daily cost doubles.

Notably, a 2026 clinical trial led by Nestle Research, published in Nature Metabolism, directly compared NR and NMN in 65 healthy adults over 14 days. Both compounds increased circulatory NAD+ comparably, while also improving gut microbial growth and metabolism (4).

NAM (nicotinamide), by contrast, did not raise NAD+ levels in the same way. This is some of the most current head-to-head human data available, and it suggests that both NR and NMN work, with the more meaningful differences between OMRE and Pure Encapsulations coming down to dose, purity, and supporting ingredients rather than the precursor molecule alone.

On resveratrol specifically, OMRE's 500mg dose is above the doses often used in human studies, which are commonly in the 150 to 500mg range. With BioPerine enhancing absorption, the delivered bioavailable quantity may also be higher than what Pure Encapsulations' 150mg without an enhancer provides.

Edge: OMRE for NMN dose, resveratrol dose, and absorption support. Pure Encapsulations for NR clinical evidence depth and flexible dosing protocol.

Testing & Transparency

Both brands take quality seriously, but they differ meaningfully in what they make publicly available.

OMRE conducts dual-stage testing: raw ingredients are verified for purity and identity before encapsulation, and the finished product is retested after manufacturing to confirm active ingredient content, microbiology, and heavy metals. COAs are available on their website for each batch, and specific purity percentages, 99% for NMN, 98% for trans-resveratrol, and 95% for piperine, are printed directly on the supplement facts panel.

Pure Encapsulations is one of the more established names in the practitioner supplement channel, with more than 30 years of operation and a long history of quality manufacturing. Its sourcing of NIAGEN^® from ChromaDex provides ingredient-level validation, as ChromaDex independently tests NIAGEN^® before sale. However, Pure Encapsulations does not publish batch-specific finished-product COAs publicly for NR Longevity, which creates a real transparency gap compared to OMRE, even if that does not necessarily mean lower product quality.

Edge: OMRE for public COA availability and label-level purity transparency. Pure Encapsulations for 30+ years of practitioner trust and NIAGEN^® ingredient-level validation from ChromaDex.

Price & Value

OMRE's NMN + Resveratrol retails at approximately $69 for 60 capsules, or roughly $2.30 per serving at the recommended two-capsule daily dose. Pure Encapsulations NR Longevity retails at approximately $65 for 60 capsules, which places it at roughly $2.17 per serving at once-daily dosing. However, at twice-daily dosing the bottle lasts 15 days, pushing the effective daily cost to approximately $4.33.

OMRE delivers 200mg more NAD+ precursor (500mg NMN vs 300mg NR) and 350mg more resveratrol (500mg vs 150mg) per serving for roughly $0.13 more per day. That said, sulforaphane at 800mcg may still be physiologically meaningful despite its small weight, and Pure Encapsulations' NIAGEN^® likely carries a premium as a patented ingredient.

Edge: OMRE for active ingredient value per dollar. Pure Encapsulations for lower sticker price at once-daily dosing.

The Verdict

These two products serve different supplement users, and neither is objectively better for everyone. The choice comes down to your precursor preference, your position on resveratrol dosing, and whether you want a focused high-dose formula or a broader multi-pathway longevity stack.

OMRE uses NMN, delivers a high resveratrol dose with BioPerine^®-enhanced absorption, and backs it with public COA transparency. It may be the better fit if you want the maximum NMN and resveratrol per serving, prefer verified purity you can independently confirm, or already supplement sulforaphane separately.

Pure Encapsulations uses NR, a clinically documented NAD+ precursor ingredient, and pairs it with sulforaphane, a compound that activates cellular antioxidant pathways that NMN and resveratrol do not directly target in the same way. The dosing flexibility and deep practitioner-channel reputation may add appeal for those working with a healthcare provider.

Who Should Choose OMRE?

• You want the highest possible NMN and resveratrol dose in a single serving.
• You prefer NMN over NR based on its growing metabolic efficacy evidence.
• You want BioPerine^® to help improve resveratrol bioavailability.
• You're already supplementing sulforaphane separately and do not need it bundled.
• You prefer a minimal, no-filler formula with verified purity figures on the label.

Who Should Choose Pure Encapsulations?

• You want an all-in-one formula covering NR, resveratrol, and sulforaphane in a single serving.
• You prefer NIAGEN^® nicotinamide riboside, supported by a strong independent clinical literature among NAD+ precursor ingredients.
• You want sulforaphane to activate Nrf2 antioxidant pathways not addressed by NMN or resveratrol alone.
• You have multiple food sensitivities and need a rigorously certified allergen-free formula.
• You trust a 30+ year practitioner-channel brand with deep integrative medicine credibility.

Conclusion

Both OMRE and Pure Encapsulations NR Longevity appear to be credible products in a category filled with lower-quality alternatives. OMRE may be the better fit for those who want a high-dose NMN + resveratrol formula with BioPerine^®-enhanced absorption, dual-stage third-party testing, and strong active ingredient value per dollar. Pure Encapsulations may suit those who prefer a one-formula longevity approach built around a clinically documented NR ingredient, with the addition of sulforaphane for Nrf2 pathway support and the flexibility of practitioner-guided dosing.

Neither product is inherently superior. The right choice depends on whether you prioritize raw potency and transparency, which may point toward OMRE, or formula breadth, allergen certification, and practitioner trust, which may point toward Pure Encapsulations.