Most physician-guided NAD injection programs start patients in the 50mg to 100mg per dose range and adjust from there based on tolerance and response. Some protocols move up to 200mg or 500mg per dose over time, particularly for patients focused on energy, cognitive support, or recovery goals. Dosage is typically expressed in milligrams per injection rather than per day, and most at-home programs prescribe either daily or several-times-per-week schedules depending on the treatment plan — and those who want a full breakdown of how injection frequency varies by goal can visit the how often to get NAD injections page for a complete guide covering loading and maintenance phases. For a quick breakdown of dose ranges organized by goal and frequency, the NAD injection dosage chart is a useful reference before your first provider consultation. Because NAD injection dosage is not one-size-fits-all, a licensed provider reviews your health history before recommending a specific starting point, which is why many patients also read up on what are NAD injections and what is NAD before their first consultation. Adults who are specifically exploring whether does NAD help with weight loss will find that dosage plays an important role in achieving metabolic results, and many also review the best NAD injections at home programs available so they can compare options and ask better questions from the start — including details on how at-home programs are structured and what to expect from the process, which is covered fully on the NAD injections at home page.

How often you inject NAD depends largely on the protocol your provider designs and the goals you are working toward. Some programs recommend daily low-dose injections in the 50mg to 100mg range to maintain steadier NAD levels throughout the week, while others use higher doses two to three times per week for patients who prefer less frequent administration. Weekly high-dose protocols using 500mg or more per injection are also used in some clinical programs, particularly for patients focused on recovery or cellular support, and the NAD injection cost of your program will often reflect which dosage tier and frequency your provider prescribes. Your provider will typically outline a clear injection schedule as part of your prescribed treatment plan.

NAD injections are administered either subcutaneously, meaning into the fat layer just under the skin, or intramuscularly, meaning directly into muscle tissue. Most at-home programs use subcutaneous injections because they are easier to self-administer and generally cause less discomfort. Subcutaneous NAD injection dosage is typically the same milligram amount as intramuscular protocols, though absorption rates can differ slightly between the two methods. Providers usually specify which method they recommend based on the concentration of the NAD solution prescribed and the patient's comfort level with self-injection. Always follow your provider's instructions on injection site, depth, and rotation schedule.

Different dosage tiers serve different goals within a physician-guided NAD program. A 50mg dose is often used as a starting or maintenance dose for patients new to NAD therapy or those sensitive to higher amounts. A 100mg dose is one of the most commonly prescribed mid-range options and is frequently used for daily or every-other-day protocols. A 500mg dose is typically reserved for more aggressive programs targeting significant energy, cognitive, or recovery goals and is usually injected less frequently. Your provider will place you in the appropriate dosage tier after reviewing your health history, goals, and how your body responds to initial treatment.

NAD injection dosage is rarely static, and most providers adjust it based on how a patient responds during the first several weeks of treatment. Factors that influence dosage changes include energy and focus improvements, any NAD injection side effects like injection site irritation or nausea, changes in health goals, and results from follow-up lab work if ordered. Patients who respond well at a lower dose may stay there long-term, while others are gradually titrated upward toward a therapeutic target. Lifestyle factors like sleep quality, nutrition, exercise habits, and other medications can also affect how well a given NAD injection dosage works for an individual patient.