What N-of-1 Cannot Do
A single-subject self-experiment cannot produce population-level effect estimates. It cannot establish that a result generalizes from me to anyone else. It cannot rule out my own placebo effect with the cleanliness of a double-blind trial. The published literature on personalized N-of-1 trial methodology is honest about all of this -- the framing is "this can produce defensible personalized answers" rather than "this can produce clinical evidence" 1 2.
Acts by promoting aldehyde and alcohol metabolism of foods.†
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
The structure-function claims H180 makes are tied to the published mechanism literature on the underlying ingredients (DHM and the ADH and ALDH enzymes, from animal studies with mixed results; SAG delivers intact glutathione; fulvic acid assists membrane transport), not to my self-test data. The self-tests are why I am personally confident the combination works for me. The mechanism literature is why the claims are defensible in front of a regulatory reviewer.
The Fatigue Exception
There is one specific limitation worth calling out by name: fatigue. When the drinking came on top of poor sleep, jet lag or an already-tired day, the tiredness was still there in my testing. (the fatigue exception is the limitation that frustrated me most, because it is exactly the use case I would most want the formula to address, and it does not.)
Confounders I Could Not Eliminate
Self-blinding is the largest confounder. I tried opaque capsules with rotating colors, but that is not blinding, and the testing was not blinded. Order effects -- improvement over time as I got better at the protocol -- were a real risk that I tried to control by re-running no-supplement nights and earlier candidates at intervals. Day-of-week, season, and cumulative drinking exposure across the testing window were all observable but not eliminable confounders. I logged them and discounted findings that aligned with them.
What Counts as a Result
Helps you feel fresh.†
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
A candidate stayed in the formula only if it matched what a higher dose of DHM alone did, judged on the blended score, pass or fail. This is a much weaker bar than statistical significance in a clinical trial, but it is the bar that fits single-person decisions about which ingredients to keep. For comparison, the 2005 systematic review of hangover-prevention trials found that "No compelling evidence exists to suggest that any conventional or complementary intervention is effective for preventing or treating alcohol hangover" 3.
Supports balanced consumption of alcohol (from all sources of food and drink).†
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What This Page Is Not Claiming
The point of being explicit about limitations is not to undermine the formula but to keep the marketing honest. Self-experimentation gives you defensible personal answers but it does not give you generalizable population claims, and pretending otherwise is the failure mode that wrecks most supplement-founder narratives. The H180 claims are what the published mechanism literature supports. The self-test data is why I personally trust the formula. Both pieces matter. Conflating them would be dishonest.
For the protocol that produced the self-test data, see 150 Self-Tests -- The Method. For the drink-counting discipline that made the data interpretable, see Drink Counting Methodology.