Both come from collagen, but unflavored gelatin gels in liquid, which is what this recipe relies on for its texture and volume. Collagen peptides usually don't gel and dissolve at any temperature.
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See the Full BreakdownThe Same Protein, Processed Differently
Gelatin and collagen peptides both start as collagen from animal connective tissue. Gelatin is only partially broken down, which is why it still gels when it cools, the exact property the gelatin trick recipe depends on. Collagen peptides go through an extra processing step called hydrolysis that breaks the protein into smaller pieces, so it dissolves into hot or cold liquid without ever gelling.
Practical Differences
At a Glance
- Gelatin gels when mixed with liquid, the texture used in this trend
- Collagen peptides dissolve into any drink without gelling
- Collagen supplements are usually marketed for skin and joints
- Both are incomplete proteins missing the same amino acid
Quick Take
For this specific trend, stick with unflavored gelatin, it's what gives the drink its filling texture.
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