How to Inject NAD+ Safely at Home: A Step-by-Step UK & EU Guide

Giving yourself a subcutaneous NAD+ injection at home follows the same core technique used for most other self-administered subcutaneous treatments: wash your hands, clean the site, pinch a fold of skin, insert the needle at the angle stated in your kit's instructions, inject steadily, then dispose of the needle safely. Getting this how to inject NAD+ technique right matters for comfort, consistency, and reducing avoidable bruising — this guide walks through each step, how to choose and rotate injection sites, and what to do afterwards.

Why Technique Matters for At-Home NAD+ Injections

NAD+ injection kits sold to UK and EU customers are designed for self-administration, but it's worth being upfront: NAD+ is not currently licensed by the MHRA as a medicine, and products like this are typically supplied under the UK's framework for unlicensed medicinal products rather than as an approved, clinically evaluated prescription treatment. You can read more about how the MHRA treats unlicensed medicinal products on GOV.UK. Because there's no routine nurse or clinician standing over your shoulder the way there might be with a prescribed injectable, taking a few extra minutes to get your technique right — clean hands, a steady hand, and the correct angle — may support a more comfortable injection and reduce the risk of site irritation, missed doses, or unnecessary bruising.

What You'll Need Before You Start

• Your NAD+ vial, pre-filled pen, or syringe, used strictly according to the instructions supplied with your specific kit

• A fresh alcohol wipe for each injection

• An approved sharps disposal container (never a household bin)

• A clean, flat, well-lit surface to prepare on

• Clean, dry hands, washed with soap and water immediately beforehand

• A piece of gauze or clean cotton wool for afterwards

Step-by-Step: How to Give Yourself a Subcutaneous NAD+ Injection

The sequence below reflects the general pattern used in NHS patient guidance on self-administering subcutaneous injections, adapted for an at-home NAD+ kit. Always defer to the specific instructions that came with your product where they differ from the general steps here.

1. Wash and dry your hands thoroughly with soap and water.

2. Clean the injection site with a fresh alcohol wipe and let it air-dry for a few seconds — wiping it dry can reintroduce bacteria.

3. If you're using a syringe, draw up your measured dose following your kit's instructions; if you're using a pre-filled pen, prime it as directed.

4. Gently pinch a fold of skin between your thumb and forefinger to lift it away from the muscle below.

5. Insert the needle at the angle specified in your kit's instructions (commonly somewhere between 45 and 90 degrees for subcutaneous injections) in one smooth, confident motion — hesitating tends to make it more uncomfortable, not less.

6. Keeping the needle still, press the plunger slowly and evenly until the full dose has been delivered.

7. Withdraw the needle at the same angle it went in, then release the pinched skin.

8. Immediately place the used needle into an approved sharps bin — for a full walkthrough of safe disposal, see our separate sharps safety guide.

9. Press a clean piece of gauze over the site for a few seconds. Avoid rubbing the area, which can increase bruising.

Choosing and Rotating Your Injection Sites

Two areas are generally the most practical for self-administered subcutaneous injections: the abdomen and the outer thigh. Both have enough subcutaneous fat to make the injection more comfortable and are easy to reach and see without help.

Site	Where to Find It	Things to Note
Abdomen	A few inches around the belly button, alternating left and right sides (avoid the belly button itself)	Often the easiest site to reach and see for self-injection; a popular starting point for beginners
Outer thigh	The outer part of the thigh, roughly a hand's width above the knee and a hand's width below the hip	Useful for rotating away from the abdomen; can make bruising easier to monitor if you're on blood-thinning medication

Whichever sites you use, rotate between them systematically rather than returning to the same spot each time — for example, right abdomen, then left abdomen, then right thigh, then left thigh, before repeating the cycle. Repeatedly injecting the same small area can lead to skin thickening (lipohypertrophy) and more noticeable bruising over time. Keeping a simple note of where and when you last injected, even just a tally on your phone, makes rotation much easier to stick to.

Rotate between abdomen and thigh sites to reduce bruising and skin irritation.

Common Mistakes and Aftercare

• Injecting too slowly or hesitantly, which tends to be more uncomfortable than a smooth, confident motion

• Not rotating sites, leading to repeated trauma in one small area

• Injecting into scar tissue, stretch marks, or visibly bruised skin

• Reusing a needle, which dulls quickly and increases discomfort and infection risk

• Storing or handling the kit outside the conditions stated in the product instructions before injecting

A small amount of redness, tenderness, or a minor bruise at the injection site is common and usually settles within a few days; a cool compress can help with any swelling. If you take blood-thinning medication or use another injectable treatment, check with your GP or prescriber before starting at-home NAD+ injections, since technique and bruising risk may differ for you. For a broader look at who should be cautious with this product, see our guide on who should avoid NAD+ injections.

Frequently Asked Questions

What angle should I inject NAD+ at?

This depends on your needle length and the amount of fat tissue at the injection site, so always follow the specific instructions that came with your kit rather than a generic rule. Subcutaneous injections are typically given somewhere between 45 and 90 degrees, with a steeper angle more common for shorter needles or leaner areas.

Can I inject NAD+ into the same spot every time?

It's generally better not to. Repeatedly using one small area can contribute to skin thickening (lipohypertrophy) and more noticeable bruising. Rotating between sides of the abdomen and thigh, in a simple repeating pattern, is a practical way to spread out the impact.

Is it normal to see a small bead of liquid after injecting?

A small amount of liquid sometimes escapes from the injection site when the needle is withdrawn, which is generally harmless and doesn't necessarily mean you've lost your full dose. Pressing a piece of gauze gently over the site for a few seconds after injecting can help minimise this.

What should I do if I see blood in the syringe before injecting?

General self-injection guidance suggests withdrawing the needle and starting again at a new site with a fresh needle if you notice blood, since this can mean the needle has entered a small blood vessel rather than the subcutaneous layer. If you're ever unsure, pause and speak with a healthcare professional.

How long should I wait after injecting before showering or exercising?

Many people choose to wait a short period, such as 30 to 60 minutes, before very hot showers or vigorous exercise directly affecting the injection site, though your kit's own instructions should take priority over general guidance. Gentle everyday activity isn't usually restricted.

This guide is for general informational purposes only and does not replace the product-specific instructions provided with your kit or advice from a healthcare professional. If you experience any signs of an allergic reaction or feel unwell after an injection, seek medical attention immediately.