Empower founders
You own the brand and the market. We supply the science it has to stand on, so what you build is credible enough to scale.
Formulation specification
We decode the pathways.You build the brand.
A contract manufacturer will make whatever you specify. We make sure what you specify is right — actives, excipients and interactions resolved against the evidence and against FDA, FSSAI and EFSA, so what you launch is clinically sound and regulation-ready from the first batch.
Sample formulationBone & energy complex
Bilayer tabletrev. 01 — illustrative
- 01Calcium carbonatemineral500 mg
- 02Ferrous fumaratemineral18 mg
- 03Cholecalciferol (D3)vitamin25 µg
- 04Menaquinone-7 (K2)vitamin100 µg
- 05Zinc gluconatemineral25 mg
- 06Magnesium oxidemineral300 mg
- 07Pyridoxine HCl (B6)vitamin25 mg
- 08Microcrystalline cellulosediluentq.s.
- 09Magnesium stearatelubricant1.0 %
A representative review. Every finding above reflects documented interaction, stability or regulatory literature.
The name
Par
the mechanism
Biological pathways, clinical parameters, and the precision science decoded behind every formulation.
Fay
the outcome
Flourishing health — what follows when evidence, innovation and clean formulation arrive together.
World-class formulation science should be available to anyone building a serious product — without the complexity that normally surrounds it.
§ 01 — Purpose
What we are actually for.
ParFay exists so that a founder with a good idea is not held back by the parts of formulation that are genuinely hard — the pharmacology, the manufacturing behaviour, and three regulatory regimes that rarely agree.
Turn ideas into products
A concept becomes a formulation that is clinically sound and regulation-ready — not a promising idea that stalls at the first manufacturing run.
Remove the complexity
Pathways, interactions, excipient behaviour and three regulatory regimes, resolved into one specification you can hand to a manufacturer.
§ 02 — Why specification comes first
Every one of those findings is cheap on paper and expensive in a batch.
Formulation errors do not announce themselves. They surface as a stability failure at month three, a customs hold, a dissolution result that will not reproduce, or a product that tests clean and simply does not work.
On paper
A revision
An interaction caught in the specification costs a conversation and a redraft.
At pilot
A trial batch
Caught on the line, it costs raw material, machine time and a slot you waited weeks for.
After launch
The product
Caught in market, it costs the run, the listing, and the retailer relationship you built it for.
§ 03 — Scope
What a specification covers.
Engagements are project-based. Most clients take the full scope, though each part stands alone if you only need one.
01
Formulation blueprint
Actives and excipients defined line by line: dose, form, salt, rationale. Every pairing checked for synergy and antagonism, every contraindication mapped against your intended population.
02
Manufacturability & scale-up
The constraints that only appear on the line. Flow and compressibility, blend uniformity, hygroscopicity, overages to hold label claim through shelf life, and what your batch size does to all of it.
03
Regulatory & label claims
Your formula screened against permitted ingredient lists and dose ceilings in each market you intend to sell in — and a clear read on what you can legally say on the label.
04
CMO sourcing & vendor QC
Identifying manufacturers who can actually run your dose form at your volume, qualifying raw-material vendors, and reading certificates of analysis for what they omit.
§ 04 — Markets
One formula rarely clears three markets.
Permitted ingredients, dose ceilings and allowable claims diverge — sometimes sharply. A formula built for one market and then exported is the most common reason a launch stalls at the border.
FDAUnited States
DSHEA · 21 CFR 111
FSSAIIndia
Nutraceutical Regs. 2022 · Sch. VIII
EFSAEuropean Union
Art. 13.1 · Novel Foods
We specify against all three at once where you intend to sell in all three — or tell you plainly that you need two formulas.
§ 05 — Dose forms
Specified for the line it will actually run on.
A formula is only correct in the context of the form it is made in. These are the forms we specify, and the failures we are watching for in each.
Tablets & capsules
- Poor flow and compressibility at high mineral loads
- Blend uniformity on low-dose actives
- Over-lubrication retarding disintegration
- Hygroscopic actives seizing on the press
Powders, sachets & effervescents
- Moisture ingress triggering premature reaction
- Acid–carbonate balance and mouthfeel
- Segregation of the blend in transit
- Taste masking without killing solubility
Softgels, liquids & RTD
- Fill–shell incompatibility and gelatin crosslinking
- Emulsion stability across the shelf life
- Preservative systems that survive the pH
- Actives that degrade in solution long before expiry
Gummies and pastilles are outside our scope.
§ 06 — Track record
Work delivered.
67
formulations specified
25
client brands served
3
markets cleared
US-FDA · EFSA · FSSAI
Send us the formula you are about to manufacture.
Tell us the product, the market and the dose form. We will tell you what we would want to look at before you commit to a run.