20 Best Nicotinamide Riboside Hair [2024]

Are you looking for the best nicotinamide riboside hair? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling nicotinamide riboside hair.

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# Preview Product
1 Thorne Collagen Plus - Collagen Peptides Powder with Nicotinamide Riboside and Clinically Studied... Thorne Collagen Plus - Collagen Peptides Powder with Nicotinamide Riboside and Clinically Studied...
2 Multi Award Winning Patented NAD+ Booster Supplement More Efficient Than NMN - Nicotinamide Riboside... Multi Award Winning Patented NAD+ Booster Supplement More Efficient Than NMN - Nicotinamide...
3 Thorne ResveraCel - Nicotinamide Riboside with Quercetin Phytosome and Resveratrol - Support Healthy... Thorne ResveraCel - Nicotinamide Riboside with Quercetin Phytosome and Resveratrol - Support...
4 Multi Award Winning Patented NAD+ Booster Supplement More Efficient Than NMN - Nicotinamide Riboside... Multi Award Winning Patented NAD+ Booster Supplement More Efficient Than NMN - Nicotinamide...
5 Nicotinamide 500 mg - Vitamin B3 – Energy; Cell & Skin Health. Value Priced - Flush-Free - 120... Nicotinamide 500 mg - Vitamin B3 – Energy; Cell & Skin Health. Value Priced - Flush-Free - 120...
6 Heliocare Advanced Nicotinamide B3 Supplement: Niacinamide 500mg and Fernblock PLE Extract 240mg Per... Heliocare Advanced Nicotinamide B3 Supplement: Niacinamide 500mg and Fernblock PLE Extract 240mg...
7 Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3 Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3
8 ELIO Restore NAD+ Supplement Natural Alternative - Works with Nicotinamide Riboside - Booster for... ELIO Restore NAD+ Supplement Natural Alternative - Works with Nicotinamide Riboside - Booster for...
9 Best Value Nicotinamide Riboside (NR) 300mg, New Enteric Capsules, Liposomal Coated for Highest... Best Value Nicotinamide Riboside (NR) 300mg, New Enteric Capsules, Liposomal Coated for Highest...
10 Thorne NiaCel 400 - Nicotinamide Riboside Supplement - Support Healthy Aging, Cellular Energy... Thorne NiaCel 400 - Nicotinamide Riboside Supplement - Support Healthy Aging, Cellular Energy...
11 Genex NAD+ 250mg Serving 60 Capsules Nicotinamide Adenine Dinucleotide (Actual NAD+ Not a... Genex NAD+ 250mg Serving 60 Capsules Nicotinamide Adenine Dinucleotide (Actual NAD+ Not a...
12 Thorne Basic B-Complex - Tissue-Ready Vitamin B Complex Supplement with Choline - Supports Cellular... Thorne Basic B-Complex - Tissue-Ready Vitamin B Complex Supplement with Choline - Supports...
13 NMN 500mg Sublingual,Fast-Acting NMN Supplement Nicotinamide Mononucleotide,Boost NAD Levels for... NMN 500mg Sublingual,Fast-Acting NMN Supplement Nicotinamide Mononucleotide,Boost NAD Levels for...
14 biophix B-3 Nicotinamide 500 mg 180 Caps - Nicotinic Amide Niacin Natural Flush-Free Vitamin Formula... biophix B-3 Nicotinamide 500 mg 180 Caps - Nicotinic Amide Niacin Natural Flush-Free Vitamin...
15 HairFlair - Hair Growth Vitamins with Biotin for Healthier Hair - Hair, Skin and Nails Supplement -... HairFlair - Hair Growth Vitamins with Biotin for Healthier Hair - Hair, Skin and Nails Supplement...
16 MAAC10 NMN Real Nicotinamide Mononucleotide Supplement (NMN 125mg Capsules). The Most Powerful NAD+... MAAC10 NMN Real Nicotinamide Mononucleotide Supplement (NMN 125mg Capsules). The Most Powerful...
17 30 Day Supply, Nicotinamide Riboside (NR) 300mg - NAD+ Supplement, Targeted Release, Ultra High... 30 Day Supply, Nicotinamide Riboside (NR) 300mg - NAD+ Supplement, Targeted Release, Ultra High...
18 B-3 Nicotinamide 500 mg 100 Caps 2 Pack - Nicotinic Amide Niacin Natural Flush-Free Vitamin Formula... B-3 Nicotinamide 500 mg 100 Caps 2 Pack - Nicotinic Amide Niacin Natural Flush-Free Vitamin...
19 Liposomal NAD+ 500mg with TMG 250mg Softgels, Nicotinamide Riboside & NMN Alternative, Actual NAD+... Liposomal NAD+ 500mg with TMG 250mg Softgels, Nicotinamide Riboside & NMN Alternative, Actual...
20 NMN Nicotinamide Mononucleotide Supplements 250mg - Stabilized Form (60 Capsules), 99% Pure NMN... NMN Nicotinamide Mononucleotide Supplements 250mg - Stabilized Form (60 Capsules), 99% Pure NMN...
Bestseller No. 1
Thorne Collagen Plus - Collagen Peptides Powder with Nicotinamide Riboside and Clinically Studied...
  • Skin, Hair, & Nails: Enhances skin, hair, and nail health – a difference can be seen in as soon as four weeks*
  • Visibly Youthful Skin: Collagen promotes the hydration, elasticity, and strength of the skin*
  • Smooth & Radiant: Helps reduce fine lines and wrinkles helps brighten skin pigment*
  • Promotes Skin Hydration: Promotes the hydration of dry, rough, and scaly skin*
  • Trusted: Thorne is chosen by champions and trusted by 100+ pro teams. Thorne is the only supplement manufacturer to collaborate with Mayo Clinic on...
Bestseller No. 2
Multi Award Winning Patented NAD+ Booster Supplement More Efficient Than NMN - Nicotinamide Riboside...
  • Tru Niagen embodies 20+ years of scientific innovation around healthy aging. Our full-body supernutrient, Niagen, supports the 37.2 trillion cells in...
  • Protect your healthspan with comprehensive cellular defense. Healthspan is the ability to stay healthy as you get older—something everyone desires....
  • What to expect: Using Tru Niagen daily to boost your cellular NAD+ can have many positive effects. Thousands of customers report overall improvements...
  • Scientifically proven: With consistent daily use, Tru Niagen is proven to raise NAD+ levels, as is shown by multiple published clinical trials, with...
  • Quality is in our DNA: Tru Niagen is not only highly efficacious, it’s also extremely safe. Unlike NMN, our key ingredient Niagen was successfully...
Bestseller No. 3
Thorne ResveraCel - Nicotinamide Riboside with Quercetin Phytosome and Resveratrol - Support Healthy...
  • Healthy Aging: While no supplement is truly an “anti-aging” supplement – supporting cellular repair, up-regulating the sirtuin proteins,...
  • Exclusive NR: Thorne’s reformulated ResveraCel contains a unique form of nicotinamide riboside (NR) that is exclusive to Thorne
  • Boost NAD+: As a direct precursor to NAD+, Nicotinamide Riboside efficiently promotes the body’s production of NAD+, which, in turn, plays an...
  • Unparalleled Quality: Every Thorne product is made with the purest possible ingredients
  • Trusted: Thorne is chosen by champions and trusted by 100+ pro teams. Thorne is the only supplement manufacturer to collaborate with Mayo Clinic on...
SaleBestseller No. 4
Multi Award Winning Patented NAD+ Booster Supplement More Efficient Than NMN - Nicotinamide Riboside...
  • Tru Niagen embodies 20+ years of scientific innovation around healthy aging. Our full-body supernutrient, Niagen, supports the 37.2 trillion cells in...
  • Protect your healthspan with comprehensive cellular defense. Healthspan is the ability to stay healthy as you get older—something everyone desires....
  • What to expect: Using Tru Niagen daily to boost your cellular NAD+ can have many positive effects. Thousands of customers report overall improvements...
  • Scientifically proven: With consistent daily use, Tru Niagen is proven to raise NAD+ levels, as is shown by multiple published clinical trials, with...
  • SAFE TO USE: Based on Clinical Studies, Tru Niagen has no known serious negative side effects. Unlike NMN, our key ingredient Niagen was successfully...
Bestseller No. 5
Nicotinamide 500 mg - Vitamin B3 – Energy; Cell & Skin Health. Value Priced - Flush-Free - 120...
  • Supplement for Skin and Cells - Nicotinamide is Formulated to Support Your Skin Health, Cellular Systems, and Help Your Energy Levels
  • Energy and Vitality Supplement - As Aging Progresses, Energy Levels Decline. Dr. Valerie Nelson's Nicotinamide 500 mg Encourages Cellular Energy to...
  • 500 MG Per Serving - Each All Natural Vegetable Capsule Contains 500 MG of Nicotinamide Per Serving
  • Products From A Natural Doctor - With the Privilege of Working with Thousands of Individuals, Dr. Valerie Nelson Creates Top Quality Formulas Based on...
  • Made In USA - 100% Natural Created for Board Certified Natural Doctor, Valerie Nelson in a GMP Certified Lab. You Can Trust That our Nicotinamide is...
Bestseller No. 6
Heliocare Advanced Nicotinamide B3 Supplement: Niacinamide 500mg and Fernblock PLE Extract 240mg Per...
  • ADVANCED FORMULA: Nicotinamide (vitamin B3) non-flush form to help improve the appearance of skin
  • ANTIOXIDANT SUPPORT: Fernblock PLE technology to help against the harmful effects of free radicals
  • Vegan and gluten free formula derived from nature with no artificial dyes or fillers
  • FOR DAILY USE: Adults may take 2 Heliocare Advanced capsules daily (Niacinamide 500mg and Fernblock PLE Extract 240mg) or as directed by your...
  • USE WITH SUNSCREEN: Heliocare Advanced is not a replacement for topical sunscreen
SaleBestseller No. 7
Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3
  • 240 Capsules of Niacinamide Per bottle
  • 500mg of Vitamin B3 (Niacinamide) Per Capsule
  • Get The Benefits of Vitamin B3 Without The "Niacin Flush"
  • High Quality Vitamin B3 - Niacinamide. May Have White or Blue Lid
  • Non-GMO, Gluten Free, Soy Free, and Made in a GMP Compliant, FDA Registered Facility
SaleBestseller No. 8
ELIO Restore NAD+ Supplement Natural Alternative - Works with Nicotinamide Riboside - Booster for...
  • ✅ INCREASE NAD+ VIA NATURAL CELLULAR PROCESSES: Elio Restore is a natural alternative to a traditional NAD+ supplement. Elio Restore improves...
  • ✅ REDUCE INTRAMUSCULAR FAT AND INCREASE MUSCLE CELLS: Fat cells begin to replace the muscle mass which is lost as you age, but because Elio Restore...
  • ✅ ELIO RESTORE VS OTHER PRODUCTS: Instead of supplementing what you need, like other NAD or Nicotinamide Riboside (NR) supplements, Elio Restore...
  • ✅ PROVEN RESULTS: Our research showed that after taking Elio Restore supplements, there was an 80% increase in new muscle protein synthesis, a 60%...
  • ✅ RESTORE CELLULAR ENERGY AND METABOLISM: Elio Restore activates the metabolic regulator needed to increase cellular regeneration. Our cells slow...
Bestseller No. 9
Best Value Nicotinamide Riboside (NR) 300mg, New Enteric Capsules, Liposomal Coated for Highest...
  • 🔺 Proprietary synthesis creates clean Nicotinamide Riboside (Cl). UltraHealth further uses double recrystallization steps to achieve 99.5%...
  • 🔀 ONLY TWO companies in North America manufacture NR(Cl), UltraHealth is the one that publishes the percent purity results, allergen report and...
  • 🔀 CELLULAR IMMUNITY is greatly improved by increasing NAD+ in your body. Maintaining your health in the face of our current pandemic puts...
  • 🔀 FAST SHIPPING: Your order is processed rapidly and shipped within 24 hours (usually that day) - Direct from UltraHealth’s distribution facility...
  • 🔀 Nicotinamide Riboside is approved for SPORTS. UltraHealth’s ultra-high purity NR provides enhance muscle recovery for sport activities. NAD+...
SaleBestseller No. 10
Thorne NiaCel 400 - Nicotinamide Riboside Supplement - Support Healthy Aging, Cellular Energy...
  • Cellular Defense: Protect your body against the stressors of life that can cause early aging by supporting young-like cellular metabolism*
  • Boost NAD+: As a direct precursor to NAD+, Nicotinamide Riboside efficiently promotes the body’s production of NAD+, which, in turn, plays an...
  • Support Wellness Goals: Promotes exercise efficiency, helping support health and fitness goals and preserving optimal health*
  • Exclusive NR: Contains a unique form of nicotinamide riboside (NR) that is exclusive to Thorne
  • Trusted: Thorne is chosen by champions and trusted by 100+ pro teams. Thorne is the only supplement manufacturer to collaborate with Mayo Clinic on...
Bestseller No. 11
Genex NAD+ 250mg Serving 60 Capsules Nicotinamide Adenine Dinucleotide (Actual NAD+ Not a...
  • Actual NAD+ Capsules Not a precursor.
  • There is some evidence that NAD+ may be directly transported into cells to a much smaller extent than its popular precursor NMN. Nonetheless, NAD+...
  • All Genex Formulas products are bottled and tested in the USA
  • GMO Free, Glutten Free. Made in a GMP and NSF certified facility
  • We want you to be 100% SATISFIED with your purchase. Absolutely no risk. The bottle comes with our 100% satisfaction guarantee for 90 days.
Bestseller No. 12
Thorne Basic B-Complex - Tissue-Ready Vitamin B Complex Supplement with Choline - Supports Cellular...
  • Nervous System: Promotes an optimally functioning nervous system and healthy nerve cells
  • Cellular Energy: B vitamins promote cellular energy production by supporting the conversion of carbohydrates into energy, as well as the metabolism of...
  • Complete Formula: An optimal balance of eight B vitamins, plus choline, in their active form to enhance absorption in the body
  • Free From: Doesn't contain gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish
  • Trusted: Thorne is chosen by champions and trusted by 100+ pro teams. Thorne is the only supplement manufacturer to collaborate with Mayo Clinic on...
Bestseller No. 13
NMN 500mg Sublingual,Fast-Acting NMN Supplement Nicotinamide Mononucleotide,Boost NAD Levels for...
  • NEW SUBLINGUAL NMN MAX SUPPLEMENT -- 240 Days servings supply / 240 Tablets / 500 mg NMN each Tablet / 8 Months Supply; Original Flavour NMN...
  • PROMOTE HEALTH AND LONGEVITY -- NMN MAX( Nicotinamide mononucleotide ) is a derivative of the B-vitamin niacin that is known to promote health and...
  • FAST DISSOLVE -- These NMN MAX (Nicotinamide Mononucleotide ) tablets can be chewed or used sublingually. Either way, a percentage of the NMN is...
  • NON-GMO, GLUTEN-FREE, VEGAN FRIENDLY -- Made without any chemical solvents, No artificial ingredients, Colors, preservatives or additives. NMN MAX...
  • AN EASY DAILY ROUTINE: Our NMN MAX tablets are simple addition to your health routine. Easily to carry & chew, Take one Sublingua nmn 500mg daily,...
Bestseller No. 15
HairFlair - Hair Growth Vitamins with Biotin for Healthier Hair - Hair, Skin and Nails Supplement -...
  • Grow Faster, Thicker & Healthier Hair - Give your hair some love with HairFlair and achieve the healthy and strong hair you’ve been searching for....
  • Address the Root Issue From Within - Hair growth kits and shampoos can help you from the outside, but the root issue comes down to an internal...
  • Designed for All Hair Types - Thick, straight, fine, wavy, coarse or curly — caring for your hair from the inside starts now! HairFlair was crafted...
  • Premium, Scientifically Designed Formula - HairFlair’s unique formula includes the best ingredients nature has to offer for hair health. With 5000...
Bestseller No. 16
MAAC10 NMN Real Nicotinamide Mononucleotide Supplement (NMN 125mg Capsules). The Most Powerful NAD+...
  • ✅ May 2022, A New Human Cynical Trial show 125mg NMN twice daily, nearly doubled and sustained whole blood NAD levels after 4 weeks during a 12-week...
  • ✅Superior NAD+ Precursor – Fact, NMN may enter cells directly and convert to NAD+ in just one step. Also, an early animal study showed orally...
  • ✅ NMN Promotes Health & Wellness by activating SIRTUINS. A set of longevity genes responsible for repairing DNA damage and regulating or silencing...
  • ✅ Early studies suggest NMN may promote Healthy Heart, Blood Flow, Eye, Brain, Bone, Muscle and Immune Function. NMN also supports stamina,...
  • ✅ Satisfaction Guarantee - If you aren’t satisfied, we’ll refund you for any reason. GMP CERTIFIED PRODUCTION - Manufactured in a US based GMP &...
Bestseller No. 17
30 Day Supply, Nicotinamide Riboside (NR) 300mg - NAD+ Supplement, Targeted Release, Ultra High...
  • 🔺Proprietary synthesis creates clean Nicotinamide Riboside (Cl). UltraHealth further uses double recrystallization steps to achieve 99.5%...
  • 🔀 ONLY TWO companies in North America manufacture NR(Cl), UltraHealth is the one that publishes the percent purity results, allergen report and...
SaleBestseller No. 18
B-3 Nicotinamide 500 mg 100 Caps 2 Pack - Nicotinic Amide Niacin Natural Flush-Free Vitamin Formula...
  • SUPPORT YOUR SKIN’S NATURAL DEFENSE MECHANISMS: Recommended by dermatologists. This valuable supplement is ideal for men, women, and aging...
  • HELP SUPPORT THE BODY’S NATURAL RESPONSE TO SKIN BLEMISHES: Nicotinamide can help support your body’s natural response to skin blemishes by...
  • SUPPORT YOUR ENERGY LEVELS: Do you suffer from fatigue and low energy levels? There are many, many reasons for this condition that affects so many....
  • Nicotinamide is well tolerated. Nicotinamide is a different form of vitamin B3 to nicotinic acid or niacin. Nicotinic acid commonly causes headaches,...
  • SATISFACTION GUARANTEED: Every product we ship from our US-based cGMP, Food and Drug Administration inspected facility is designed to support your...
Bestseller No. 19
Liposomal NAD+ 500mg with TMG 250mg Softgels, Nicotinamide Riboside & NMN Alternative, Actual NAD+...
  • Actual NAD+ Superior to Precursors - NAD+, also known as Nicotinamide Adenine Dinucleotide, has been shown to cross the blood-brain barrier intact....
  • Powered Liposomal Delivery for Maximum Absorption - Unlike regular nad supplement, we Corllia provides Liposomes encapsulate NAD+ in a phospholipid...
  • Breakthrough Combo with Added TMG - Trimethylglycine, also called Betaine Anhydrous, is a methyl donor for the activity of NAD+. By providing methy...
  • 2 Month Supply - Take 1 softgel each day. That’s it! Each package comes with 60 servings (60 caps) to last you two month.
  • Trusted Brand - Corllia provides scientifically-formulated supplements to support each individual's potential to enjoy optimal life. We offer trust &...
SaleBestseller No. 20
NMN Nicotinamide Mononucleotide Supplements 250mg - Stabilized Form (60 Capsules), 99% Pure NMN...
  • BOOST YOUR NAD LEVELS - Genex Formulas NMN supplement promotes vascular health and blood flow, muscle endurance and strength. We only use 99% pure...
  • A COMPANY YOU CAN TRUST - We know our NMN supplements are the real deal which is why we believe in transparency. Each batch of Nicotinamide...
  • 1 MONTH SUPPLY - Each bottle of 250mg NMN Supplement comes with 60 unflavored, easy-to-swallow Nicotinamide Mononucleotide capsules. Each capsule is...
  • CREATED FOR SHELF STABILITY - At Genex Formulas, we've designed our packaging for optimal storage. Each NMN bottle is sturdy, durable, and opaque so...
  • PURCHASE WITH PEACE OF MIND - Our NMN is encapsulated, bottled and tested at a GMP and NSF certified facility in Miami, Florida, USA. Genex Formulas...

Having trouble finding a great nicotinamide riboside hair?

This problem is well understood by us because we have gone through the entire nicotinamide riboside hair research process ourselves, which is why we have put together a comprehensive list of the best nicotinamide riboside hairs available in the market today.

After hours of searching and using all the models on the market, we have found the best nicotinamide riboside hair for 2023. See our ranking below!

How Do You Buy The Best Nicotinamide Riboside Hair?

Do you get stressed out thinking about shopping for a great nicotinamide riboside hair? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching nicotinamide riboside hair, which is why we have assembled a comprehensive list of the greatest nicotinamide riboside hair available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for nicotinamide riboside hair that you consider buying. Your questions might include the following:

  • Is it worth buying an nicotinamide riboside hair?
  • What benefits are there with buying an nicotinamide riboside hair?
  • What factors deserve consideration when shopping for an effective nicotinamide riboside hair?
  • Why is it crucial to invest in any nicotinamide riboside hair, much less the best one?
  • Which nicotinamide riboside hair are good in the current market?
  • Where can you find information like this about nicotinamide riboside hair?

We’re convinced that you likely have far more questions than just these regarding nicotinamide riboside hair, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for nicotinamide riboside hair, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible nicotinamide riboside hair. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an nicotinamide riboside hair buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available nicotinamide riboside hair currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of nicotinamide riboside hair has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an nicotinamide riboside hair?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your nicotinamide riboside hair.
  5. Customer Ratings: Number ratings grade nicotinamide riboside hair objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their nicotinamide riboside hair.
  7. Product Quality: You don’t always get what you pay for with an nicotinamide riboside hair, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an nicotinamide riboside hair is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining nicotinamide riboside hair information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding nicotinamide riboside hair is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What are the best nicotinamide riboside products?

A: Below is a list of some popular nicotinamide riboside products. Tru Niagen Nicotinamide Riboside is the most heavily studied brand, the subject of 10 clinical studies in humans. It has consistently been the biggest name in NAD boosting supplements.

Q: What is Niagen (nicotinamide ribosid E)?

A: Technically, called nicotinamide ribosid e (nick-oh-tin-a-mide rhy-bow-side), Niagen is a “NAD booster supplement.” NAD is a substance that helps us make energy. When our mitochondria (the energy factories in our cells) can’t make energy effectively, this can lead to defects in our cells.

Q: Does nicotinamide riboside cause hair regrowth?

A: For some time I have been following testimonials of people with regards to the health benefits they experience by using nicotinamide riboside. One of the areas that is seldom mentioned is hair regrowth. That makes me believe that nicotinamide riboside users do not experience hair regrowth or that it is so minor they do not find it worth to mention.

Q: How much nicotinamide riboside should I take?

A: Research suggests that the ideal dose for nicotinamide riboside is anywhere between 100 to 2000mg per day. Although minimal, side effects do increase with higher doses. The more NR, the greater NAD+ levels.