stacks

a stack is four questions at once: whether anything in it fights anything else, whether you are paying twice for the same mechanism, what it costs, and where to buy it. this is a safety tool, not medical advice, and not a recommendation to combine anything.

the premade stacks

built and named by sean; open one for safety, overlap, cost and where to buy it

01beginner studyinga solid, smooth study session across a few hoursNefiracetamBromantaneTropisetronCDP-Choline4 compounds4 of 4 at Kimera Chems; Code Sean

02modafinil wakefulnessa long wakeful block that still thinks clearly4 compounds3 of 4 at Kimera Chems; Code Sean

03caffeine, but betterthe same lift, naturally derived, without the edge3 compounds3 of 3 at Amazon

04neuroprotectionthe longevity corner, four different mechanisms4 compounds2 of 4 at Kimera Chems; Code Sean

05aas neuroprotectioncognitive stability while running anabolics6 compounds3 of 6 at Amazon

06sleep supportfalling asleep and staying there, without a sedative5 compounds2 of 5 at Kimera Chems; Code Sean

07crammingan exam-week stack in three layers: hold the plasticity window open, get the material back out, and pay for the metabolism it costs10 compounds7 of 10 at Kimera Chems; Code Sean

08beginner focusthe entry point: two things most people already own, plus two that build on them4 compounds2 of 4 at Kimera Chems; Code Sean

09social flowless inhibition and better filtering, without sedation3 compounds3 of 3 at Kimera Chems; Code Sean

10processing speedfour levels of one pipeline: membrane, receptor, noise floor, and the energy to run it4 compounds4 of 4 at Kimera Chems; Code Sean

11verbal fluencyfaster word retrieval and less hesitation, on a short roster4 compounds4 of 4 at Kimera Chems; Code Sean

12language learningencoding, retrieval and the confidence to actually speak it7 compounds7 of 7 at Kimera Chems; Code Sean

13phenyl-get-up-racetamthe same shape as beginner studying, opposite temperament4 compounds3 of 4 at Kimera Chems; Code Sean

14cholinergic concentrationone system, four different points on it4 compounds3 of 4 at Kimera Chems; Code Sean

15advanced adhd focusthe seven item version; a wider margin, and more to get wrong7 compounds5 of 7 at Kimera Chems; Code Sean

16anti-anhedoniafor when nothing is wrong and nothing feels good either4 compounds3 of 4 at Kimera Chems; Code Sean

17dopaminergic recoverya recovery protocol on a schedule, not a stack of stimulants5 compounds2 of 5 at RUO; Code Sean

18natural mood supportan acute serotonergic nudge plus a slower stress-axis change3 compounds3 of 3 at Amazon

19longevity and neuroprotectionfour separate insults, four separate answers4 compounds3 of 4 at Kimera Chems; Code Sean

20mitochondrial longevitysubstrate in, machinery built, throughput improved4 compounds3 of 4 at Amazon

21mitochondrial upkeepbuild, run, fuel and clear; the clearing half is the point4 compounds2 of 4 at Amazon

22against neurodegenerationdamage accumulation rather than energy production4 compounds3 of 4 at Amazon

23theoretical cancer defencecell and animal mechanisms, no human outcome data, and the word theoretical is doing real work4 compounds3 of 4 at Amazon

24deep cognitive repairthree compounds aimed at damage already done, and three very different evidence bases3 compounds3 of 3 at RUO; Code Sean

25bdnf boostgrowth signalling as such, and less of it is direct than the name suggests4 compounds3 of 4 at RUO; Code Sean

26nerve and tendon repairtwo aimed at tissue, two aimed at nerve, and none of them approved for it4 compounds4 of 4 at RUO; Code Sean

27bioregulator peptidesa coherent research programme with a devoted following and a thin external evidence base4 compounds3 of 4 at RUO; Code Sean

28nasal moodthree compounds up the nose, and three completely different confidence levels3 compounds3 of 3 at RUO; Code Sean

29neuro-nasalfour levers on cognition, sharing a route rather than a pathway4 compounds3 of 4 at RUO; Code Sean

30neurosteroid balancetwo precursors that go where your body decides, plus a peptide that is not in the pathway at all3 compounds2 of 3 at Amazon

31endurancebetter oxygen use and a lower perception of effort, not more stimulation4 compounds4 of 4 at Kimera Chems; Code Sean

32fat lossthe deficit does the work; everything here is an addition to it4 compounds3 of 4 at RUO; Code Sean

33aggressive cutthe same problem as fat loss, approached from burn-more rather than eat-less5 compounds5 of 5 at Kimera Chems; Code Sean

34lipid controla steep evidence gradient, and pretending otherwise would be the useless version4 compounds2 of 4 at PCT.Zone; Code Scientific

35blood-flow boostvessel calibre, oxygen release, and red cell count; the third one is the serious one3 compounds2 of 3 at Kimera Chems; Code Sean

36neuro-vascularitydelivery and utilisation, with the evidence gradient running the opposite way from usual4 compoundsno single outlet

37topical hair lossstopping the loss, at the follicle, with the androgen pressure removed3 compounds3 of 3 at RUO; Code Sean

38hair regrowthfour points on one follicle cycle, and only one of them is proven4 compounds3 of 4 at RUO; Code Sean

39smoothest skinpigment, oxidative load, barrier and dermal collagen, on two different routes4 compounds2 of 4 at RUO; Code Sean

40skincare blendsthree compounded formulations, where the vehicle is most of the argument3 compounds3 of 3 at Kimera Chems; Code Sean

41anti-inflammatoryfour points on the inflammatory cascade, and it should not feel like much4 compounds2 of 4 at RUO; Code Sean

42gut repair goodnessfour things aimed at one lining, from four directions that do not overlap4 compounds3 of 4 at Kimera Chems; Code Sean

43herbal inflammation hitterfour plant-derived anti-inflammatories, and one of them exists to make another absorb4 compounds4 of 4 at Amazon

44rapid encodingfour layers of getting something into memory the first time, plus the substrate that pays for it6 compounds5 of 6 at Kimera Chems; Code Sean

45cosmonaut focusthe clutch stack: one hard stimulant racetam, the choline to pay for it, and a b1 derivative that reaches the brain3 compounds3 of 3 at RUPharma

46atp firepowerelectron transport, not biogenesis: the stack for a chain that is running badly rather than for having too few mitochondria5 compounds3 of 5 at Amazon

47super synaptogenesisbuild the synapse and supply the membrane it is made of; the slowest stack here and the one with the clearest logic4 compounds3 of 4 at Kimera Chems; Code Sean

48peptidergic neuroplasticityfour peptides at the same problem from four directions, and the only stack here where the route is the hard part4 compounds4 of 4 at RUO; Code Sean

49choline-gaba-ergic stabilizationraise the cholinergic signal and the gaba floor together, so the lift does not arrive as edge5 compounds4 of 5 at Kimera Chems; Code Sean

50information retentionthree levers on one pathway, plus one that is not on it at all4 compounds3 of 4 at Kimera Chems; Code Sean

51amazon antioxidantsfour antioxidants in four different places, and every one of them orderable from one outlet4 compounds4 of 4 at Amazon

52optic nerve supportenergy, blood flow, and one experimental item, aimed at the one nerve that does not grow back3 compounds2 of 3 at RUPharma

53sean's dihexa methoda delivery technique, not a formula: a fat carrier and five minutes under the tongue2 compoundsno single outlet

54coming off cannabiseleven items aimed at the weeks after heavy cannabis use, and one finding that changes how you should read all of them11 compounds5 of 11 at Kimera Chems; Code Sean

55coming off stimulantstwelve items for the months after heavy stimulant use, ranked honestly: one has a real human trial, most have none12 compounds9 of 12 at Amazon

56legendary neuroprotectionnine items in three phases: hold the glutamate brake, shield the mitochondria, then feed the growth signal9 compounds6 of 9 at Amazon

57after a strokeeight items the owner assembled for post-stroke recovery, and the current guideline position on all of them, which is the first thing to read8 compounds5 of 8 at RUPharma

58lithium orotate moodsix items around a trace dose of lithium, and a straight account of what that dose can and cannot be doing6 compounds4 of 6 at Amazon

59serious anhedoniaeight items for when nothing feels good, ordered by what has actually been tested against anhedonia rather than depression8 compounds4 of 8 at RUPharma

60nefiracetammednefiracetam with the layers usually stacked around it, and a straight account of which of those pairings anyone has actually studied9 compounds5 of 9 at Kimera Chems; Code Sean

61e-sports + reaction speedthe reaction-time stack in four layers: make the synapse fire faster, hold the attention gate open, sharpen what the eyes send it, and pay for the metabolism that costs8 compounds3 of 8 at Kimera Chems; Code Sean

compare side by side →the full index →where to buy →

these verdicts are class-level heuristics; this is NOT medical advice in any capacity. this is purely for human harm reduction and informative purposes. no dosing NOR safety protocols can be enforced. liver-enzyme (CYP450) flags only fire on the serious, well-documented metabolic interactions; minor pharmacokinetic bumps are left unflagged, and no flag is not proof of safety. interactions will heavily depend on baseline neurology, dose, timing, and context. talk to a qualified professional before combining any drugs with one another, and inform yourself.

check an interaction

add up to six compounds; the checker reads every pair before you mix.

TAK-653 source →Oxiracetam source →Nefiracetam source →PRL-8-53 source →BPN14770 source →CDP-Choline source →

six is the max for a clean read; remove one to swap.

the verdict

overallAvoid

checking TAK-653, Oxiracetam, Nefiracetam, PRL-8-53, BPN14770, and CDP-Choline: at least one combination is flagged to avoid (7 compatible pairs, 1 to avoid). treat the red pairs as a reason to reconsider mixing.

stack: 6 compounds · 15 pairs checked
pairs: 1 avoid · 7 compatible · 7 no data
overlap: AMPA receptor (GluA1/GluA2, ligand-binding domain) ×2; receptors/levers more than one of these touches

pair matrix 15


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every pair 15

TAK-653Oxiracetam
Avoid
Oxiracetam plus a strong AMPA potentiator (TAK-653) piles on excitatory glutamate load too hard.
TAK-653Nefiracetam
Compatible
noted as a compatible pairing in TAK-653's own profile; no adverse interaction flagged.
TAK-653CDP-Choline
Compatible
CDP-Choline is cholinergic; no adverse class-level interaction flagged with this compound.
OxiracetamNefiracetam
Compatible
carries no adverse class-level interaction with most compounds.
OxiracetamCDP-Choline
Compatible
CDP-Choline is cholinergic; no adverse class-level interaction flagged with this compound.
NefiracetamPRL-8-53
Compatible
noted as a compatible pairing in PRL-8-53's own profile; no adverse interaction flagged.
NefiracetamBPN14770
Compatible
noted as a compatible pairing in BPN14770's own profile; no adverse interaction flagged.
NefiracetamCDP-Choline
Compatible
CDP-Choline is cholinergic; no adverse class-level interaction flagged with this compound.
TAK-653PRL-8-53
No data
no notable interaction flagged; these look broadly independent.
TAK-653BPN14770
No data
no notable interaction flagged; these look broadly independent.
OxiracetamPRL-8-53
No data
no notable interaction flagged; these look broadly independent.
OxiracetamBPN14770
No data
no notable interaction flagged; these look broadly independent.
PRL-8-53BPN14770
No data
no notable interaction flagged; these look broadly independent.
PRL-8-53CDP-Choline
No data
no notable interaction flagged; these look broadly independent.
BPN14770CDP-Choline
No data
no notable interaction flagged; these look broadly independent.

safe

one pair to avoidavoid

TAK-653 + OxiracetamOxiracetam plus a strong AMPA potentiator (TAK-653) piles on excitatory glutamate load too hard.

where

5 of 6 in one basketKimera Chems; Code Sean

Kimera Chems; Code Seancode Seancarries 5 of 6 · TAK-653 · Oxiracetam · Nefiracetam · PRL-8-53 · CDP-Choline
Limitless Biochem; Code Seancode Seancarries 4 of 6 · TAK-653 · Nefiracetam · PRL-8-53 · BPN14770
RUO; Code Seancode Seancarries 3 of 6 · Oxiracetam · Nefiracetam · PRL-8-53
RUPharmacarries 1 of 6 · CDP-Choline

cost

6 of 6 priced

TAK-653$64.20 · $32.10/mg · Limitless Biochem; Code Sean
Oxiracetam$36.00 · $0.072/mg · RUO; Code Sean
Nefiracetam$20.00 · $0.004/mg · RUO; Code Sean
PRL-8-53$64.20 · $6.42/mg · Limitless Biochem; Code Sean
BPN14770$96.00 · $19.20/mg · Limitless Biochem; Code Sean
CDP-Choline$6.30 · $0.013/mg · PCT.Zone; Code Scientific

redundant

3 overlapssame lever, twice

MemoryclassPRL-8-53 · BPN14770
RacetamclassOxiracetam · Nefiracetam
AMPA receptor (GluA1/GluA2, ligand-binding domain)receptorTAK-653 · Oxiracetam
an overlap is not automatically waste; a precursor and a reuptake inhibitor share a system on purpose. it is worth knowing you are paying for the same lever twice.