Foundation manufacturing is a shade range business. The hero shade that sells 30 percent of units is the easy part; the other twenty-four shades, the inventory cost of holding them, and the fact that a shade which looks right in the lab oxidises two tones darker on the face are what decide whether the launch works.
1. Shade count and economics
Twelve to fifteen shades covers a mass-market range; twenty-five to forty covers a prestige range with a real inclusivity claim. Each shade is a separate batch, a separate quality release and a separate inventory line, so cost rises in steps rather than linearly. A brand launching forty shades at a 2,000-unit minimum is committing to 80,000 units and a fill line that spends much of its time on changeovers.
2. Pigment and coverage
Pigment load decides coverage. A sheer foundation sits at 8 to 12 percent pigment, a medium at 15 to 18, a full coverage at 20 to 25. Above 25 percent the formula becomes stiff, transfers onto clothing, and photographs as a mask. Inorganic pigments – titanium dioxide and iron oxides – carry the coverage; a small amount of an organic pigment adjusts the undertone. A full-coverage foundation that feels light usually uses a coated pigment and a high level of a volatile silicone, which is a formulation cost rather than a marketing claim.
3. Emulsion type
Oil-in-water: the mainstream, comfortable, water-resistant only with a film former. Water-in-oil: transfer-resistant and long-wearing, harder to remove, and the technical basis of most long-wear launches. Silicone-in-water: light, blurring, popular in Asian markets. An anhydrous stick is a fourth. The emulsion type decides the finish more than the pigment does, which is why briefs should specify the finish before the coverage.
4. Oxidation
Oxidation is the darkening of a foundation on the skin, caused by sebum, sweat and the pH of the skin interacting with the pigment dispersion. It is measured by applying a standard dose to a substrate, incubating at 37 degrees Celsius with a sebum simulant, and measuring colour at 1, 4 and 8 hours. A shift of more than two units in the b value is visible. Coated pigments and a well-dispersed system reduce it; a cheap uncoated pigment almost guarantees it.
5. Shade matching
Shades are matched spectrophotometrically against a reference panel of skin tones, with undertone specified as well as depth. A range built on depth alone produces shades that look wrong on warm undertones. The practical method is five undertone families at five depths, then a reduction to the twenty-five that a panel of at least sixty subjects actually selects. A shade nobody selects is inventory.
6. Fill and packaging
A 30 ml pump bottle is the standard. A foundation with volatile silicones needs an airless or a lined pack, because the volatiles permeate some plastics and the formula thickens in the bottle. Fill accuracy matters more than for skincare, because a 2 ml shortfall in a 30 ml pack is visible at the end. Test the pump for strokes to prime and grams per stroke at the start and end of the bottle.
7. Commercial profile
Stock emulsion, 30 ml pump bottle, MOQ 2,000 units per shade, 30 to 40 days. See the face makeup range and the powder guide for the product that finishes the base.
