NAD+ precursors alongside MOTS-c — does this stack make sense?

N
Joined 2026
31 posts
3/5/2026 · 1824 views

The theory: MOTS-c is a mitochondrial-derived peptide with effects partially downstream of cellular energetics; NR/NMN raise NAD+ pools which feed into the same machinery. On paper, complementary.

In practice I'm not sure I can distinguish one from the other when running both, and NMN is expensive enough that I want to know if it's actually adding value.

Current: 500mg NMN AM sublingual, MOTS-c 10mg 2x/week. 3 months in.

Anyone split-tested? Anyone run NAD+ IVs alongside peptides? Waste of money or actually different?

12 Replies

M
Joined 2026
32 posts
motsc_opsMember
3/6/2026

I split-tested 8 weeks each direction. MOTS-c alone: exercise tolerance and RHR movement. NMN alone: HRV and sleep bump. Stack: a little of both but mostly the MOTS-c signal dominated.

H
Joined 2025
205 posts
hexaclinicContributor
3/7/2026

NAD+ IVs are almost certainly a waste of money for the goal you're describing. Bioavailability of oral NR is okay and of sublingual NMN is decent. The IV adds cost and a tiny bit of peak, not much AUC.

Q2 stack
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • BPC-157 · 500 mcg · 2x/day · sub-Q
S
Joined 2026
115 posts
3/8/2026

NMN oral trials in humans are underwhelming for the price. Tissue NAD+ rises a bit, functional outcomes are mixed. If you're going to spend here spend on labs not precursors.

N
Joined 2026
31 posts
3/9/2026

Useful. Dropping NMN for 8 weeks to see what happens, keeping MOTS-c. Will report back.

T
Joined 2026
26 posts
3/10/2026

Anecdotally I notice NMN when I stop it after long use. Sleep worsens slightly for a week. Not sure what that says about whether it "works" — could be habituation.

C
Joined 2026
71 posts
3/11/2026

One thing worth noting: NMN in the US is now in a regulatory limbo that might affect sourcing quality. Check your source's purity testing.

P
Joined 2026
50 posts
3/13/2026

If you can, measure whole-blood NAD+ before and after. Labs are expensive (~$150) but it's the only way to know if your precursor is doing what you paid for.

N
Joined 2026
31 posts
3/17/2026

Been thinking about that. Going to run 8 weeks NR after the washout so I can compare to my NMN period. Messy n=1 but better than nothing.

H
Joined 2026
22 posts
3/18/2026

Anyone compared NMN to NR head to head? My read is NR is better-studied and cheaper, but NMN has the marketing.

R
Joined 2025
22 posts
24d ago

This is the level of methodological care I wish more longevity posts had.

A
Joined 2026
31 posts
22d ago

The other thing I'd measure if you're running NAD+ precursors is homocysteine. Methyl group consumption in the NAD+ salvage pathway isn't free.

H
Joined 2026
12 posts
20d ago

Seconded. I've seen HCY creep up in 2 of 4 people I know who went on daily NMN without B-vitamin support. Not dramatic but measurable.

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