Comparison
Locked In vs Alpha Brain: Which Nootropic Actually Delivers?
Onnit's Alpha Brain is the best-known name in nootropics. Here's how it stacks up against Locked In on ingredients, dosages, and real world focus.
The short answer
Alpha Brain is a caffeine free capsule built around three proprietary blends total ingredient dosages disclosed, individual ones not. Locked In is a drink-mix nootropic with fully disclosed, clinically dosed Alpha-GPC, L-Theanine, natural caffeine, and Panax ginseng. If you want to know exactly how much of each active compound you're getting, Locked In wins on transparency.
Ingredient transparency
Locked In: Every active ingredient is labeled with an exact milligram amount. No proprietary blends.
Alpha Brain: Uses three proprietary blends ("Onnit Flow", "Focus", and "Fuel"). The total blend weight is disclosed, but the amount of each individual ingredient including its Alpha-GPC is not.
Proprietary blends are legal, but they make it impossible to know whether a nootropic ingredient is at a clinically effective dose or a fairy dusting.
Alpha-GPC content
Locked In contains 300 mg of Alpha-GPC per serving inside the range human trials use for measurable focus and memory improvements. Alpha Brain contains Alpha-GPC inside its "Focus Blend," but the individual amount isn't disclosed, so there's no way to confirm it's at a research backed dose.
Caffeine
Alpha Brain is caffeine free it's designed to layer on top of your existing coffee. Locked In includes 150 mg of natural caffeine per serving, paired with 200 mg of L-Theanine, so it's a complete drop in replacement for your morning coffee or afternoon energy drink, not an add on.
Format & experience
Alpha Brain is a capsule (two per dose) you swallow it and forget about it. Locked In is a flavored powder you mix into cold water takes 30 seconds, feels like a drink, and lets you feel it kick in with your first sips. Powder also makes dose splitting easy.
Who each one is for
- Choose Alpha Brain if you already drink coffee, don't want any extra caffeine, and are comfortable with proprietary blends.
- Choose Locked In if you want fully disclosed, clinically dosed ingredients and you'd rather drink one thing than take capsules plus coffee.
Bottom line
Alpha Brain has the brand recognition. Locked In has the transparency. If dosages matter to you and for nootropics, they should a fully labeled formula beats a proprietary blend every time.