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Soap Dye - 24 Color Food Grade Skin Safe Coloring for Bath Bomb and DIY Making Supplies - Liquid Concentrated Colorant Kit Review (2026)

Updated September 14, 2026 · Research-based review

Our verdict

A 24 bottle liquid colorant kit that gives melt and pour soap makers a wide, ready-mixed palette without buying single colors one at a time. The concentrated water-based dyes blend evenly into melt and pour bases, but food grade liquid dyes are not built for cold process lye soap, where they tend to fade or shift color.

Soap Dye - 24 Color Food Grade Skin Safe Coloring for Bath Bomb and DIY Making Supplies - Liquid Concentrated Colorant Kit

A 24 Color food grade, skin safe liquid concentrated soap dye kit for bath bombs and DIY soap making.

Price range: See on Amazon

What we liked

  • + 24 Color range makes it easy to mix exact shades
  • + Liquid concentrate blends evenly into melt and pour bases
  • + Food grade skin safe labeling reassures makers of kids' soaps

Trade-offs

  • - Food grade dyes often fade or morph in cold process lye soap
  • - Liquid dyes can bleed between layers in multi-color bars

Who this dye kit is for

This kit is aimed at a melt and pour soap maker or bath bomb crafter who wants a broad color range without sourcing and testing single dye bottles individually. Because it ships as 24 separate colors in small squeeze bottles rather than one multipurpose bottle, it suits someone building a varied product line, layered bars, or custom color-matched batches for gift sets and craft fair tables. The food grade, skin safe labeling also makes it a reasonable starting point for a maker producing kids' bath products or novelty soaps where parents ask about ingredients. It is less suited to a cold process soap maker who needs colorants that hold up through the saponification process, since liquid food dyes behave differently once they meet lye.

What is in the kit and how it is made

The set includes 24 individual squeeze bottles, each holding about 0.25 fluid ounces of concentrated liquid colorant, for a combined volume of about 6 fluid ounces across the full kit. The dyes are described by the listing as water based and food grade, formulated to be free of harsh chemicals and safe on skin, with a concentration high enough that only a few drops are typically needed to reach a saturated shade. The same formula is marketed for use beyond soap, including bath bombs, lotions, and play dough, which points to a general purpose liquid colorant rather than one engineered specifically for lye-based cold process chemistry.

Using the drops in a real batch

In melt and pour work, a few drops go directly into the melted base and stir in cleanly since the dye is already water based and concentrated, which is where this kit performs closest to its listing. The squeeze bottle format makes it easy to add color gradually and mix custom shades by combining two or more of the 24 bottles rather than committing to a single premixed hue. For layered or swirled bars, it helps to let each poured layer set before adding the next, since a liquid dye can migrate slightly into an adjoining layer while both are still soft. Keeping bottle tips wiped clean between colors avoids cross-contamination in a kit this size.

Where it runs into trouble and how it compares

The clearest limitation shows up in cold process soap, where the high pH and heat of saponification can fade food grade liquid dyes or shift them toward an unexpected shade, a known issue with this dye category rather than a defect specific to this kit. Against other liquid colorant sets in the same range, such as the 36 color concentrated kit from a competing brand, this 24 color set sits in the middle of the field on both color count and independent scoring, offering fewer shades than the largest competitor but a similar water based, food grade formulation. Makers doing serious cold process color work generally reach for micas or oxide pigments instead of liquid food dyes for that reason.

Verdict and who should buy something else

For melt and pour soap, bath bombs, and similar projects, this kit delivers a wide, ready-to-use color range in a format that is easy to dose and mix by hand. The trade-off is that liquid food grade dyes are not the right tool for cold process bars meant to hold a stable color after curing, and multi-layer pours need a bit of patience to avoid bleeding between colors. A melt and pour maker or bath bomb crafter who wants variety without buying single bottles will get good use out of this set. A cold process soap maker chasing consistent, long-lasting color should look at mica powders or lye-stable pigments instead.

Frequently asked questions

Will these dyes hold their color in cold process soap?

Food grade liquid dyes like these commonly fade or shift shade during the saponification process in cold process soap, so they are better suited to melt and pour bases that are not exposed to raw lye.

How much dye does each bottle hold?

Each of the 24 bottles holds about 0.25 fluid ounces of concentrated colorant, for roughly 6 fluid ounces total across the kit.

Can these colors be mixed to make custom shades?

Yes, since the dyes are concentrated liquids in separate squeeze bottles, combining a few drops from two or more bottles is a straightforward way to build a custom shade.

Do the colors bleed between layers in a multi-color bar?

Liquid dyes can migrate slightly into an adjoining layer while both are still soft, so letting each poured layer firm up before adding the next helps keep colors distinct.

Prices change often, so check the current price and availability on Amazon.

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