NAD+ drips, injections, patches & sprays (Restore, Drip Hydration, AgelessRx, Renue, Ways2Well, Tru Niagen, Wonderfeel)

What it claims

• Reverses cellular ageing by restoring NAD+ levels
• More energy, sharper cognition, faster recovery, better sleep
• Mitochondrial repair, DNA repair support, sirtuin activation
• A single IV 'resets' your cells; ongoing patches/injections maintain the effect

What the label is not telling you

• IV NAD+ drips (Restore Hyper Wellness, Drip Hydration, The IV Doc, NAD Treatment Center) — €400–€1,200 per session, typically 250–1,000 mg infused over 2–4 hours. Bioavailability is ~100% by definition (it is in your vein), but the published human PK data shows NAD+ is rapidly broken down extracellularly into precursors before it ever reaches the cell — so what is actually 'reaching the cell' is closer to a slow NMN/NR infusion than direct NAD+ replacement. Most clinics over-promise the mechanism. Acute side-effect profile (chest pressure, nausea, anxiety) is dose- and rate-dependent and is the reason the infusion has to run slowly.
• Sub-q NAD+ injections (AgelessRx, Ways2Well, Tailor Made Compounding) — €150–€400/month for self-administered sub-cutaneous shots, typically 100–300 mg, 1–3×/week. Cheaper than the IV, far less time, but human PK data on sub-q NAD+ is essentially absent — the dosing is extrapolated, not validated. Telehealth scripts are usually written after a 5-minute intake form. Compounding pharmacy quality varies widely; ask for the specific 503B pharmacy and a recent third-party assay.
• NAD+ patches (Renue By Science, Limitless NAD) — €60–€120/month. Transdermal NAD+ delivery has almost no published human absorption data, and the molecule is large and hydrophilic — the exact profile that does not cross intact skin well. The most likely real-world effect is a placebo + a small B-vitamin co-factor effect from the patch matrix.
• Sublingual / nasal NAD+ sprays (Renue By Science, Quicksilver Scientific) — €50–€100/month. Slightly better mucosal absorption story than patches, still lacking published human PK. Sprays are mostly a more honest delivery for the precursors (NMN, NR, nicotinamide) that are usually in the formulation alongside NAD+.
• Oral NMN (Wonderfeel Youngr, ProHealth Longevity 1000mg, DoNotAge) — €60–€100/month. Oral NMN does measurably raise blood NAD+ in published human trials at 250–900 mg/day. This is the delivery format with the strongest human data — and it is also the cheapest. The catch: the FDA's 2022 ruling reclassified NMN as an investigational drug, so the US supply is now in regulatory limbo and quality varies by brand. Third-party COA is non-negotiable.
• Oral NR / Tru Niagen (Nicotinamide Riboside) — €40–€80/month. The most-studied NAD+ precursor in humans, with multiple peer-reviewed trials showing it raises NAD+ in blood. Less hyped than NMN, better-behaved regulatory status, comparable biomarker outcome. The boring, evidence-backed pick of the category.
• The IV-clinic upsell pattern — almost every clinic selling NAD+ drips also sells the same vitamin / glutathione / B-complex add-ons that produce most of the 'I felt amazing' effect immediately post-infusion. The subjective hit you are paying for is often the hydration, the B-vitamins, and the 4 hours sitting still in a quiet room — not the NAD+.

Effect on the nervous system

Mixed and mostly indirect. The acute IV experience (chest pressure, anxiety, flushing, racing heart during the infusion) is a real sympathetic activation event for many people — the opposite of the 'reset' framing. The post-infusion calm most people report is largely the parasympathetic rebound from sitting still in a clinic chair for 4 hours plus the hydration and B-vitamin co-infusion. Sub-q injections and oral precursors do not produce the same acute autonomic event. Critically: NAD+ does not regulate the nervous system. It supports cellular energetics in a body that is already regulating. Stacking €600 IVs onto inverted cortisol, fragmented sleep, and unaddressed sympathetic load is buying mitochondrial fuel for an engine that is overheating, not under-fuelled.

Who it might suit

Adults with a regulated nervous-system baseline who want to support NAD+ levels, with realistic expectations: oral NR (Tru Niagen) or third-party-tested NMN at clinically studied doses, daily, for 8–12 weeks, then re-assess subjectively. Sub-q injections only with a real clinician (not a 5-minute telehealth script) and a verified compounding source. IVs reserved for specific clinical contexts under physician care, not as a monthly wellness ritual.

Who should skip it

Anyone whose primary issue is fatigue, burnout, brain fog, or poor sleep — you are buying mitochondrial fuel before nervous-system regulation, and it will not work. Anyone in active or recently treated cancer (NAD+ pathway involvement is contested and clinician-only). Pregnancy, nursing. Anyone considering self-administered sub-q injections without a real clinical relationship. Anyone whose €600/month NAD+ budget would, honestly, do more for them as 90 days of coaching, a sleep tracker, or grocery upgrades.

Bottom line

Of the 9 products reviewed, the only ones with a published human evidence base for actually raising NAD+ are oral NR (Tru Niagen) and oral NMN at clinically studied doses (Wonderfeel, ProHealth Longevity 1000mg, DoNotAge) — and they cost a fraction of the IV. The €600 NAD+ drip is mostly an experience product: 4 hours of stillness, hydration, B-vitamins and a story. Patches and sprays are largely placebo-grade. Sub-q injections sit in a regulatory and PK grey zone. If you genuinely want to support cellular energetics, start with oral NR or third-party-tested NMN, layer it onto the Longevity anchor, and only consider clinical-grade injectables with a real practitioner relationship — not a telehealth form. Verified longevity-stack picks live at thecodex.world.