What Goes in a Cosmetic Manufacturer Brief

What a cosmetic brief must contain

The formula, by phase

Cosmetic formulas are built in phases, and the phase an ingredient belongs to is part of the specification, not a manufacturing detail. Water phase, oil phase, cool-down phase for heat-sensitive actives, and the preservative addition each have their own processing implications.

Every ingredient needs its INCI name and its percentage. Trade names alone are ambiguous — the same trade name can cover different compositions, and INCI is what your label will carry anyway.

pH target and tolerance

pH determines preservative efficacy, active stability, and skin compatibility, and it is one of the first things a formulator will ask. Give a target and a range. If an active only works within a narrow band — many acids and vitamin C derivatives do — say so explicitly, because it constrains everything else in the formula.

Preservative system

State what you want and, more importantly, what you will not accept. If your positioning excludes certain preservatives, that is a formulation constraint with real consequences for water activity, packaging, and shelf life, and it needs to be on the table from the start rather than raised after a formula exists.

Sensory and performance targets

This is what separates a cosmetic brief from a supplement one. A supplement either assays at label claim or does not. A cosmetic can hit every analytical specification and still fail commercially because it feels wrong.

• Viscosity target, and whether it must hold across a temperature range.
• Slip, absorption rate, and finish — matte, dewy, satin.
• After-feel, and whether any residue is acceptable.
• Color and fragrance intent, or explicit absence of both.
• Reference textures if you have them, which are more useful than adjectives.

Packaging belongs in the brief, not after it

Cosmetics interact with their containers in ways supplements largely do not, which is why packaging is a formulation input here rather than a downstream decision.

• Actives can degrade on contact with certain plastics, or the container can absorb them out of the formula.
• Fragrance components migrate into some materials, changing the scent over shelf life.
• Airless pumps protect oxidation-sensitive actives that a jar would expose at every use.
• Pump and dispenser function depends on viscosity — a formula thickened after packaging was chosen may not dispense.
• Light-sensitive actives constrain you to opaque or tinted containers.
• Compatibility testing takes time, and it has to run on the actual container.

Claims and markets change the formula

Cosmetic claims are regulated differently from supplement claims and differently again across markets, and the constraint runs backwards into the formula.

• A claim tied to an active usually requires that active at a specific concentration, which constrains the rest of the formula.
• Some claims require supporting testing — instrumental or consumer panel — that has to be planned for.
• The EU maintains restricted and prohibited ingredient lists and requires a safety assessment before a product can be placed on the market.
• Claims that stray into altering skin structure or function can push a cosmetic toward being regulated as a drug.
• Every market you intend to sell into belongs in the brief, because a formula lawful in one may not be in another.

Formulaite screens ingredient status and claim support across the frameworks you are selling into at the point the formula is still cheap to change, and produces the brief with the INCI list, percentages, phase structure, and constraints already stated.

Frequently asked questions

Can I just send a competitor's product and ask them to match it?

Manufacturers get this request constantly and will usually attempt it, but understand what you are buying: a facility's approximation of someone else's formula, developed on their stock bases, which they may well be free to sell to the next brand that asks. It is also a weak starting point for claims, because you do not know why the original works. Better to specify what you want the product to do and let the formula be developed for you.

What if I do not know my sensory targets yet?

Give reference products, which are more useful than adjectives — a chemist can measure a reference and work toward it. What does not work is leaving it blank, because the formulator will then optimize for whatever is easiest to make and you will discover the result at sample stage, which costs a round trip.

Do I need INCI names, or are trade names enough?

You need INCI. Trade names are ambiguous — the same one can cover different compositions or concentrations — and INCI is what your label has to carry in most markets anyway. Working in trade names creates a translation step where errors happen.

How does Formulaite build a cosmetic brief?

From the product outcome you describe, working back to actives and concentrations, with pH and stability constraints resolved, preservative considerations flagged, phase structure set, and ingredient status screened for your markets. What a manufacturer receives is a formulation specification rather than a request to reverse-engineer something.

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