NAD+ Injection Dosage Per Day: Complete Guide to Dosing, & Schedules

If you are exploring NAD+ therapy and wondering about the right NAD+ injection dosage per day, you are not alone. With dosing ranges that vary by delivery method, goals, and individual health status, it is easy to feel overwhelmed by conflicting information. This guide brings together clinically informed protocols for subcutaneous, intramuscular, and IV administration, a full NAD+ injection dosage chart, a step-by-step titration plan, and practical guidance so you can move forward with clarity and confidence.

What Is NAD+ and Why Does Dosage Matter?

NAD+ (Nicotinamide adenine dinucleotide) is a vital coenzyme that supports energy production within cells, aids in DNA repair, and helps regulate metabolism to maintain overall cellular function.

However, as you age, NAD+ levels naturally diminish, impacting cellular function. Research suggests that NAD+ levels can decline substantially with age. In some tissues, they may drop by 40–50% or more between early adulthood and middle age, though the exact degree varies depending on individual factors, lifestyle, and tissue type. The brain and liver tend to experience particularly significant decreases. Beyond aging, lifestyle factors such as chronic stress, poor sleep, alcohol consumption, and inflammation can further accelerate this decline. 

Getting the dosage right matters for two reasons. Too little and you are unlikely to experience meaningful benefits in energy, cognitive clarity, or cellular repair. Too much too quickly may cause side effects such as nausea, fatigue, or flushing, especially during the initial titration phase. Because NAD+ therapy is not one-size-fits-all, understanding the variables that shape your ideal protocol is the essential starting point.

NAD+ Injection Dosage Chart: SubQ, IM, and IV at a Glance

The following NAD+ injection dosage chart covers the three primary routes of administration. Use it as an educational reference. Your healthcare provider will create a personalized NAD+ therapy plan tailored to your specific health objectives and medical background.

Common concentration: Most compounded NAD+ injections are supplied at 100 mg/mL, making unit-to-volume conversions straightforward. See the volume-to-dose reference below.

Always verify the concentration on your vial label before drawing up a dose, as formulations can vary between pharmacies and providers.

NAD+ Injection Dosage Per Day: Breaking It Down by Route

Subcutaneous (SubQ) Injections: Your Daily Protocol

Subcutaneous NAD+ injections are the most common format for daily home administration. The injection is typically given into fatty tissue just beneath the skin, commonly in the abdominal area or upper arm. Absorption is reliable because the NAD+ enters the bloodstream from the surrounding tissue without passing through the digestive system. 

The NAD+ injection dosage per day for the SubQ route typically begins at 20 to 30 mg and progresses toward 50 to 100 mg, depending on tolerance and goals. Here is how a standard titration looks:

Week 1: Inject 0.1 mL (10 mg) once daily. This is the body-awareness phase. Pay close attention to any nausea, fatigue, or injection site discomfort. Most people tolerate this starting dose without issue.

Weeks 2 to 3: If week 1 was well-tolerated, increase to 0.25 mL (25 mg), administered two to three times per week or daily depending on provider direction.

Week 4 and beyond: Progress to the target dose of 0.5 mL (50 mg) two to three times per week. Many clinicians consider 50 mg per injection, up to three times per week, to offer a strong balance of benefit and tolerability. Some protocols extend toward 100 mg per injection for individuals who have demonstrated good tolerance.

Important: During the initial titration phase, do not exceed 0.5 mL (50 mg) per injection within any 24-hour period. Advancement to 100 mg (1.0 mL) per injection may be appropriate for some individuals during the maintenance phase, but only under ongoing clinical supervision and explicit provider direction. Increasing the dose too quickly can lead to side effects without providing additional benefit for most individuals.

Injection site rotation: Rotate your injection sites with every administration. Common locations include the four quadrants of the abdomen, the back of the upper arm, and the outer thigh. Using the same site repeatedly can cause local irritation, redness, or nodule formation.

Intramuscular (IM) Injections: Clinic and At-Home Options

Intramuscular NAD+ injections deliver the solution directly into muscle tissue, typically the gluteus, thigh, or upper arm. Absorption is fast because muscle tissue is highly vascularized.

A standard IM protocol begins at 50 mg (0.5 mL) once weekly for four weeks. If the lower dose is well tolerated, it may be increased to 100 mg (1.0 mL) once weekly. The typical maintenance ceiling for IM NAD+ is 100 mg per injection, administered up to three times per week under medical supervision.

IM injections are a useful option for people who want a faster absorption profile than subcutaneous administration but cannot access IV infusions regularly.

IV Infusion: The High-Dose Clinical Route

Intravenous NAD+ therapy delivers the coenzyme directly into the bloodstream, bypassing all absorption barriers for near-complete bioavailability. Because of this, IV infusions can produce the most immediate and pronounced effects, often described as increased mental clarity or a noticeable energy lift during or shortly after the session.

Standard IV doses range from 250 mg to 1,000 mg per session. For first-time patients, most providers start at 100 to 250 mg to assess tolerance, then increase to 500 mg or higher across subsequent sessions.

IV infusions are administered slowly, typically over one to four hours, depending on the dose. Lower doses of 100–250 mg may be completed in one to two hours, while higher doses of 500–1,000 mg generally require two to four hours. The slow drip rate is essential. Rapid infusion increases the risk of side effects, including nausea, flushing, and chest discomfort. When side effects occur during an IV session, the infusion rate is slowed rather than stopped in most cases. 

Typical IV schedule:

• Loading phase (Weeks 1–6): One to two sessions per week, starting at 100–250 mg and progressing to 500 mg or higher as tolerated.
• Maintenance phase: Monthly or bi-monthly sessions at 500–1,000 mg, depending on goals, age, and how the individual maintains NAD+ levels between sessions.

IV NAD+ therapy requires professional administration in a clinical setting under the supervision of a licensed healthcare provider and is not for at-home use.

How Much NAD+ Should I Inject? Factors That Personalize Your Dose

How much NAD+ should I inject? This is one of the most common questions from people starting therapy, and the answer depends on several individual variables.

Age: NAD+ levels decline with age. Adults in their 40s, 50s, and 60s often require higher doses or more frequent dosing than younger individuals to achieve similar results. Older adults may find that 50–100 mg subcutaneous injections three times per week, or periodic IV sessions at 500–750 mg, are needed to sustain meaningful benefit.

Health status and treatment goal:

• For general wellness and longevity support, 50 mg SubQ injections two to three times per week represents a reasonable starting maintenance dose.
• For cognitive enhancement or brain fog, many providers recommend weekly SubQ protocols, with periodic IV sessions discussed during consultation.
• For addiction recovery support, higher doses administered daily under close clinical supervision are more common, reflecting the increased demand the brain places on NAD+ during recovery.
• For athletic performance and recovery, 50–100 mg subcutaneous injections two to three times per week are frequently used.

Tolerance: Some individuals experience stronger sensitivity to NAD+ therapy, particularly at higher doses. These individuals benefit from a longer, more gradual titration rather than rapid dose escalation. Following the titration schedule outlined in this guide is one of the most effective ways to minimize early-stage discomfort.

Baseline NAD+ levels: Without knowing where your NAD+ levels start, choosing a dose involves some degree of estimation. Your provider may discuss available biomarker or wellness assessment options to help track your progress and evaluate whether your protocol is working as intended.

NAD+ Dosage by Goal: Quick Reference

NAD+ and Peptide Therapy: Understanding the Connection

NAD+ is sometimes discussed alongside peptide therapies because both are used in longevity and performance medicine contexts and are commonly administered via subcutaneous injection. It is important to clarify that NAD+ is not a peptide; it is a coenzyme. However, it is frequently administered using the same subcutaneous injection techniques used for peptide-based therapies such as BPC-157 or Sermorelin.

When NAD+ is part of a broader wellness protocol that also includes peptide therapy, your prescribing provider will establish dosing for each component individually. The NAD+ component in these protocols typically follows the same SubQ dosage principles outlined in this guide: starting at 0.1 mL and titrating upward to 0.5 mL per injection based on individual tolerance and response.

NAD+ Dosing Schedule: A Practical Week-by-Week Plan

Here is a structured eight-week NAD+ dosing plan for someone starting subcutaneous injections. This mirrors protocols used by leading wellness clinics and is designed to minimize side effects while building toward an effective maintenance dose.

Week 1:

• Begin with 0.1 mL (10 mg) of NAD+ daily or every other day.
• Monitor for possible side effects such as nausea, fatigue, or injection site irritation, and report any concerns to your provider.
• Keep the vial refrigerated and sterilize the stopper with an alcohol wipe before each use.

Week 2:

• If week 1 is well-tolerated, increase to 0.25 mL (25 mg).
• Administer two to three times per week (e.g., Monday, Wednesday, Friday).

Weeks 3 to 4:

• Progress to 0.5 mL (50 mg) two to three times per week if week 2 is comfortable.
• This is the typical target dose for most subcutaneous injection protocols.

Weeks 5 to 8:

• Maintain 0.5 mL (50 mg) three times per week.
• Discuss with your provider whether to add a periodic IV session or increase SubQ to 100 mg based on your response.

Week 9 onward (Maintenance):

• Continue 50–100 mg SubQ two to three times per week.
• Consider periodic IV sessions for a deeper cellular boost, as directed by your provider.
• Reassess dosing every three months with your provider.

A Comparison of NAD+ Delivery Methods: IV, SubQ, and IM

Factors That Deplete NAD+ Levels

Understanding what lowers your NAD+ baseline helps explain why supplementation matters and how to protect the gains you make from therapy.

Age-related decline: Research suggests NAD+ levels can drop substantially between early adulthood and middle age, with the brain and liver showing particularly significant decreases.

Chronic stress: Stress increases NAD+ consumption because the body uses more of the coenzyme to fuel hormonal and neurological stress responses. People under sustained psychological or physical stress may find they need higher or more frequent doses to maintain levels.

Alcohol consumption: Regular or heavy alcohol use can impair NAD+ synthesis, placing a burden on the liver, which is a primary site of NAD+ production.

Poor sleep: Sleep deprivation has been linked to lower NAD+ levels, partly because the body's NAD+-dependent repair processes are most active during deep sleep.

Chronic inflammation: Ongoing inflammatory conditions activate enzymes that consume NAD+ rapidly, contributing to depletion over time.

Diet quality: NAD+ is synthesized from vitamin B3 (niacin), found in foods like fish, poultry, whole grains, and leafy greens. A diet consistently low in these nutrients can limit the body's natural NAD+ production.

Side Effects and How to Manage Them

NAD+ therapy has a strong general safety profile, but side effects do occur, particularly during initial dosing or rapid dose escalation.

Common side effects:

• Nausea or stomach discomfort (most common with IV administration)
• Mild fatigue after injection
• Flushing or warmth, particularly with IV infusion
• Injection site redness, tenderness, or minor swelling
• Headache at higher doses

Managing side effects during SubQ injections:

• Slow the rate of injection (inject over 30 to 60 seconds rather than rapidly)
• Split a higher dose across two injection sites if needed
• Rotate injection sites with every administration
• Apply a cold pack to the injection site to alleviate local irritation

Managing side effects during IV infusions:

• Slow the infusion rate. This is the most effective intervention. 
• Stay hydrated before and during the session.
• If you experience chest tightness, difficulty breathing, or severe nausea, notify your administering clinician immediately.

When to contact your provider:

• Persistent nausea beyond 24 hours
• Significant injection site reactions (warmth, swelling, or pain that worsens over time)
• Any allergic symptoms, such as rash or difficulty breathing

Mild fatigue and nausea typically resolve within a few hours and often improve significantly after the first two to three weeks of titration.

NAD+ Injection Storage and Handling

Proper storage directly affects the potency of your NAD+ solution. Follow these guidelines to protect your investment.

• Refrigerate immediately upon receiving your vial. NAD+ injections should be stored at 36 to 46°F (2 to 8°C).
• Protect from light. Exposure to light degrades NAD+ over time. Keep the vial in its original packaging or a dark storage area when not in use.
• Do not freeze. Freezing can compromise the effectiveness of the solution.
• Before each injection, sanitize the vial's rubber stopper with an alcohol wipe and allow it to dry fully before inserting the needle.
• Use within the recommended period. Follow the expiration date and any beyond-use date indicated on your pharmacy label. Discard the vial if it appears cloudy, discolored, or contains visible particles.
• Store supplies separately. Keep syringes, needles, and alcohol wipes in a clean, dry location away from moisture.

NAD+ Benefits Supported by Research

The growing clinical interest in NAD+ therapy is grounded in a meaningful and expanding body of research. These are the most consistently reported benefits across human and preclinical studies.

Cellular energy and mitochondrial function: NAD+ is required at every stage of cellular respiration, from glycolysis to the Krebs cycle and the electron transport chain. Higher NAD+ levels support more efficient energy production at the cellular level.

DNA repair: NAD+ is essential for DNA repair, particularly in maintaining genomic integrity as DNA damage accumulates over time.

Cognitive function: The brain relies heavily on NAD+-dependent pathways. Preliminary research suggests NAD+ supports neuronal health and may contribute positively to memory, focus, and mental clarity. Emerging research also points to a potential role in conditions related to neurodegeneration, though this area continues to evolve.

Inflammation reduction: NAD+ supports the activity of sirtuins (SIRT1–SIRT7), proteins that regulate inflammation, stress resistance, and gene expression. This sirtuin connection is a central reason why NAD+ is considered an important molecule in longevity science.

Muscle recovery and athletic performance: Athletes and active individuals use NAD+ therapy to support energy metabolism during intense training and to reduce recovery time between sessions.

Addiction recovery support: Clinical programs have incorporated high-dose NAD+ (primarily via IV) in addiction recovery because of its potential to support brain function and reduce cravings. This application typically involves intensive supervised dosing and is distinct from routine wellness protocols.

The Right Approach to Starting NAD+ Therapy

Before beginning NAD+ injections, the most important step is working with a licensed healthcare provider who can evaluate your health history, identify any contraindications, and write a prescription for a pharmaceutical-grade compounded NAD+ solution from a licensed pharmacy.

Self-administering NAD+ using unregulated or unverified products carries real risks, including product purity concerns, incorrect dosing, and the absence of medical oversight if a side effect occurs.

Once you have your prescription and treatment plan, follow these steps for the best results:

• Start with the lowest recommended starting dose for your route of administration.
• Follow the titration schedule as directed. Do not accelerate dose increases based on how others report their experience.
• Keep a simple log of your injections, including the dose, site, time, and how you feel in the hours after. This information is valuable during follow-up visits to assess the therapy's effectiveness.
• Schedule regular check-ins with your provider, especially in the first two months.

At ThinWorks, our medical team supports patients through personalized NAD+ protocols tailored to individual wellness goals. Whether you are looking to support healthy aging, sharpen cognitive performance, boost energy, or improve recovery, we are here to help you build a protocol grounded in clinical evidence and individualized care.

Want to get NAD+ Therapy in Palm Beach Gardens, Florida, or know more about the NAD+ injection dosage per day? Reach out to our support team at pbg@thinworks.com or call 561-235-0100. The ThinWorks experts are here to answer your questions and point you in the right direction. You can also explore our blog section for detailed insights and helpful information.

Frequently Asked Questions

What is the Typical Daily Dose of NAD+ for Subcutaneous Administration?

Most SubQ protocols start at 10 to 30 mg daily and progress toward 50 mg administered two to three times per week. Daily SubQ dosing at 50 mg is also used in some protocols, particularly during loading phases. Your provider will determine what fits your goals and tolerance.

How Long Will It Take to Feel the Effects of NAD+ Injections?

Some individuals notice increased energy or mental clarity within 24 to 72 hours of the first injection. For most people, noticeable and sustained improvements in energy, mood, and cognitive function emerge over two to four weeks of consistent use.

Can I Take NAD+ Injections Every Day?

Daily subcutaneous injections are used in some protocols, particularly during the initial loading phase. After the first month, most protocols shift to a maintenance phase with two to three sessions per week. Never exceed 0.5 mL (50 mg) per injection within a 24-hour period without explicit provider direction.

What Distinguishes NAD+ Subcutaneous Injections From Intravenous Therapy?

IV therapy delivers a much higher dose (250–1,000 mg) with near-complete bioavailability in a single clinical session over two to four hours. SubQ injections are self-administered at home with smaller doses (20–100 mg) and are designed for frequent, convenient use. IV therapy is typically used for loading or periodic intensive treatment, while SubQ injections support ongoing maintenance.

Do NAD+ Injections Need to Be Refrigerated?

Yes. Compounded NAD+ injections must be refrigerated at 36 to 46°F (2 to 8°C). They should also be protected from light. Do not freeze.

Is NAD+ Safe for Long-term Use?

Research consistently supports the safety of NAD+ therapy, which is well-tolerated by most individuals when administered under the guidance of a healthcare provider. Long-term SubQ and IV protocols are used in longevity medicine without significant adverse events reported at therapeutic doses. As with any prescription therapy, long-term use should be monitored by a healthcare provider.

What is NAD+ Dosing for Anti-aging Specifically?

Most anti-aging protocols use 50 mg SubQ injections two to three times per week as a baseline, with periodic IV sessions as directed by your provider. Oral NAD+ precursors such as NMN or NR at 250 to 500 mg daily are often discussed as a complementary option for continuous baseline support between injections. Your ThinWorks provider can advise on what is appropriate for you. 

How Do I Get Started?

Getting started is simple. Call us at 561-235-0100, email pbg@thinworks.com, or complete our online form to schedule your free consultation. Our team will review your health history and create a custom NAD+ injection plan designed around your unique goals. 

At ThinWorks in Palm Beach Gardens, Florida, NAD+ therapy is delivered exclusively through subcutaneous (SubQ) injections, the most convenient, clinically effective format for at-home maintenance. Subcutaneous injections bypass the digestive system entirely, delivering NAD+ directly into the bloodstream through the tissue beneath the skin. There is no IV drip or oral supplement; just a precise, physician-prescribed SubQ injection that you can self-administer in minutes. All protocols are personalized by our medical team and dispensed through a licensed compounding pharmacy.

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