Collagen.
Coffee.

Functional coffee is everyday coffee with a purposeful, functional ingredient built right in — for Two Birds, that's 5g of collagen peptides. You get the coffee you'd drink anyway, plus a real benefit, in a single cup. No powders, no mixing, no extra steps.

Yes. Two Birds uses hydrolyzed collagen peptides, which dissolve completely and clear into hot coffee during the brew cycle — no residue, no film, no texture change. You get 5g of collagen in a cup that still tastes exactly like coffee.

Collagen coffee K-Cups are standard K-Cup pods that contain both coffee and collagen — pre-measured and integrated at the manufacturing level. Two Birds pods deliver 5g of hydrolyzed collagen peptides per cup, fully dissolved, with no extra mixing required.

Yes. Collagen peptides are a well-tolerated dietary protein with a strong safety record. At 5g a day it's a gentle, everyday amount — and because it's built into your coffee, it fits a routine you already have.

Each pod contains 5g of hydrolyzed bovine collagen peptides (Type I & III) — within the daily range used across peer-reviewed research on skin, nail, joint, and bone outcomes.

Grass-fed, hydrolyzed bovine collagen peptides — Type I & III, the collagen types most abundant in skin, hair, nails, bone, and connective tissue. Hydrolyzed means it's broken into small fragments that dissolve clear and absorb efficiently.

Collagen works through consistency, not a one-off. Skin hydration and elasticity tend to improve over roughly 8–12 weeks of daily use, joint comfort over 12–24 weeks, and nail strength over about 24 weeks. The daily habit is what delivers the result.

No. Hydrolyzed collagen peptides at 5g are essentially tasteless and dissolve completely during the brew cycle, so there's nothing left to taste. Your coffee tastes exactly like coffee — no chalkiness, no film, no aftertaste.

For most healthy adults, collagen coffee has no meaningful side effects — collagen peptides are a well-tolerated dietary protein with a strong safety record. The most common report is mild digestive fullness, and usually only with much larger amounts than the 5g in a pod. Our collagen is bovine-sourced, so it isn't vegan or suitable for those avoiding beef.

Two Birds pods work with every Keurig brewer ever made — Keurig 1.0, 2.0, K-Elite, K-Supreme, K-Slim, K-Mini, K-Duo, and all other K-Cup compatible machines. If it brews a K-Cup, it brews Two Birds.