Ranked by human evidence · every claim sourced · updated September 2026
What will actually help
Blood work finds the real leakThyroid, iron, B12, sleep apnea and vitamin D explain most fatigue. One lab panel with a physician beats a year of vials. This is the strongest card on the page.
Real results
Fix the night, get the dayWaking tired is a sleep problem wearing an energy mask. The sleep page has the honest ranking, including the one option with FDA approval behind it.
Real results
NAD+ shots, the longevity betThey raise blood NAD levels for sure. No trial shows that healthy people feel more energy afterward. Popular, pricey, unproven.
Long shot
MOTS-c, the exercise mimicThe mouse endurance data is genuinely exciting. Human evidence is a handful of small pilots. Interesting science, not a plan for Monday morning.
Long shot
B12 shots when B12 is lowTransformative for people who are actually deficient, useless for everyone else. The lab panel tells you which one you are. That is the whole trick.
Cheap tryFatigue with chest pressure, breathlessness or a sudden onset is a doctor visit this week, not a supplement question.
What it costs
$
What people pay
Checked September 2026
NAD+ programs$125 to $224 a month once fees are counted
MOTS-cGray vial only, no legitimate program
Compare every NAD+ price
Questions people ask
What does the NAD injection do?
It raises the blood level of a coenzyme every cell uses to turn food into energy. That rise is measurable and real. The leap from a higher blood number to feeling better is the part nobody has demonstrated in healthy adults.
Does NAD+ really work?
For raising NAD levels, yes. For energy, focus or aging in healthy people, no controlled trial supports it. Clinics charge $125 to $224 a month for that bet, so decide with your eyes open and with a physician who says the same thing out loud.
What is MOTS-c good for?
In mice it improved endurance and insulin sensitivity, which is where the exercise mimic nickname comes from. Human work is a handful of small pilots. There is no approved product, no settled dose and no quality control on what is sold.
Why am I always tired?
Usually something a lab panel can name: low iron, low thyroid, low B12, low vitamin D or untreated sleep apnea. Stress, alcohol and a short night do the rest. Chasing that list with a physician finds the cause far more often than any vial does.
Do peptides give you energy?
Not in the way the ads suggest. No peptide is approved for fatigue and none has trial data showing healthy people feel more energetic. If a vendor promises all-day energy in a vial, that vendor just told you everything.
Sources: PubMed — NAD supplementation trials · PubMed — MOTS-c research · FDA — sleep apnea approval
