Minerals, pigments and optical ingredients

CI 17200 · the red behind a mixed shade

A deep magenta-red sculptural fold curls over a pale cosmetic plane with rich shadow.
About this illustration
The deep red material foldA red colourant can be one voice in a much wider palette. This illustrated fold gives CI 17200 a face while leaving the finished shade to its companions and base.

A red ingredient can be hiding in a bar that does not announce itself as red at all. CI 17200 is one of the colours a maker can use to compose a shade. Its familiar aliases, including Acid Red 33 and Fast Acid Magenta, open a small window onto the palette behind a solid cosmetic.

Name on the ingredient listCI 17200

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A quick answer

CI 17200 is a synthetic red azo dye associated with Acid Red 33 and D&C Red 33. It is used to colour cosmetics and may appear with other colourants in a solid formula. A current shampoo bar, for example, lists it beside yellow CI 19140 and blue CI 42090. Those names identify components of the palette, while their combination and the product base create the finished appearance.

The three-colour clue

A current hemp solid shampoo lists a red, a yellow and a blue colourant. CI 17200 is the red in that group. It is a useful little surprise: a product’s visual character can be built from several colours, just as its perfume may be assembled from several aromatic materials.

Reading that list is rather like seeing a palette beside a finished painting. The components do not each have to remain separately visible. They can contribute to a combined shade, with the background of the formula affecting how the result looks. The list records ingredients; your eye sees their meeting.

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A conceptual ivory cosmetic cutaway connects through torn paper to a magenta colour accent, a closed fragrance bottle and a pale structural block.
Colour contributionFragrance contributionStructure contribution
One colourant in a recipe of manyColour, fragrance and structure contribute different things to a solid. This conceptual cutaway makes their separate roles easier to notice without turning the picture into a recipe.

Magenta, Red 33 and the numerical anchor

Acid Red 33, D&C Red 33 and Fast Acid Magenta are names associated with CI 17200. They come from different naming conventions, yet they help identify the same colour family. The numerical name is especially useful when a product description is translated or its marketing shade has a more imaginative title.

The word acid belongs to the established dye name. It is not an instruction to expect an acidic-feeling cosmetic or a way to estimate the pH of a shampoo. That depends on the finished product. Here, the name is doing the quieter job of identifying a colour material.

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A broad specimen tag sits above deep magenta-red powder in a folded paper window.
CI 17200Acid Red 33D&C Red 33Fast Acid MagentaDocumented supplied form: powder
The numbered identityThe numerical code keeps the red identifiable across several naming conventions. A documented powder form gives that name a material counterpart.

A manufactured colour with a specific identity

The official Red 33 identity describes a manufactured azo colour isolated as a sodium salt. In plain language, the colour is made and then recovered in a defined material form. It is not a red fruit powder or an infusion from a petal.

This distinction adds clarity to a botanical-looking solid. The formula can contain hemp-related ingredients, plant oils or aromatic oils while using a separate manufactured colour. Those choices can sit together comfortably once each is allowed its own job. The source of the shade need not be the source of the product’s botanical story.

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Separate magenta powder, a translucent colour-reference sheet and a pale rose solid cut face stand across an ivory surface.
Supplied powderConceptual colour fieldIllustrative solid context
From supplied colourant to a solid contextA supplied colourant and a finished solid offer different views of colour. The translucent sheet between them is an illustrated reference field, keeping the three ideas distinct.

A lake is an additional piece of information

The pigment manufacturer’s portfolio lists a Red 33 aluminium lake under the related code CI 17200:1. The suffix matters: it is extra information about a preparation, rather than decoration on the name. It should be retained when a product or source supplies it.

This gives you a useful distinction between recognising a family and identifying a precise material. CI 17200 anchors the red discussed here; a complete grade description can explain more about its physical preparation. The bare code should not be silently expanded into a lake identity borrowed from another label.

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Two separate ivory cards carry equally sized magenta-red and warm-red reference swatches.
CI 17200CI 15850
Two reds, different materialsTwo reds can belong to different colourant identities. Keeping each complete code beside its own reference field helps those identities stay separate.

Recognising the right solid

A shelf with several similar bars can benefit from deliberate colour. Shade may help distinguish a shampoo from another product or one variety from the next. It can also make a familiar morning routine feel a little more considered. Those visual contributions are worthwhile without becoming care claims.

CI 17200 belongs to that appearance story. The washing comes from the cleansing system; texture and handling come from the solid’s construction. Seeing a red code near the end of a list need not distract from those larger roles. It adds a small, specific piece of the design.

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A colour list is not a swatch

Two products can contain a colour from the same family and look different. Their other colourants, opacity and proportions may differ. The label helps identify the ingredients, while a photograph or swatch shows the combination. Both are useful views of the object.

For everyday use, follow the finished product’s purpose and directions. A red colour entry alone does not turn a shampoo into a red hair tint. The more interesting and reliable discovery is how the maker composes a small solid’s appearance from a handful of distinct, traceable materials.

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Matching matte magenta-red solids rest on pale stone and folded deep green linen.
Pale stone settingDark cloth setting
One illustrative shade, two settingsThe same illustrative shade feels different against pale stone and dark cloth. Background and light shape the impression that a colour list alone cannot provide.

Questions you might have

Does Acid Red mean the shampoo is acidic?

No pH conclusion follows from that dye name. Acid Red 33 is an established name associated with CI 17200, while a shampoo’s pH is a property of its finished formula. Treating the name as an identity rather than a performance description prevents an unrelated colour term from becoming a claim about the product.

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Why add red to a mixed-colour bar?

A maker can combine colours to produce a finished shade. In the current solid-shampoo example, CI 17200 appears with a yellow and a blue colourant. The red therefore belongs to a palette. Its contribution is best understood in relation to the other colours and the base, rather than expecting a pure red object.

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Is Red 33 the same as the Red 28 in some balms?

No. CI 17200 is associated with Red 33, while CI 45410 belongs to the separate family associated with Red 27/28. Shared colour language does not make them the same material. Keeping the complete colour name or CI number is a simple way to follow which red a particular explanation concerns.

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One useful thought

CI 17200 makes the hidden palette visible. Its red identity, sodium-salt preparation and neighbouring colours explain why a solid’s appearance can be more considered than a single shade suggests. The useful habit is to keep names attached to materials, then enjoy how those materials combine in the finished object.

Sources

References and further reading
  1. CI 17200 – IngredientCOSMILE Europe
  2. 21 CFR 74.1333: D&C Red No. 33FDA / eCFR
  3. Champú Sólido Hemp: IngredientsValquer
  4. Cosmetic pigments portfolioNeelikon