Collagen is the most popular beauty supplement in the United States. It's also the most likely supplement in your routine to be haram. Both of those things are true and almost nobody is saying so.
If you're a Muslim taking collagen, you need to know where it came from. The answer determines whether your daily skin and joint supplement is permissible — and most brands aren't telling you the answer voluntarily.
What collagen is
Collagen is the most abundant protein in your body. It makes up about 30 percent of your total protein content and forms the structural framework of your skin, joints, tendons, and bones. Production peaks in your twenties and declines roughly one percent per year after that.
Supplemental collagen is usually hydrolyzed — broken down into smaller peptide chains that can be absorbed and used by the body. Clinical research at doses of 2.5 to 10 grams per day shows measurable improvements in skin elasticity, hydration, and joint comfort over 8 to 12 weeks.
The science is solid. The sourcing is where it gets complicated.
The three sources — and which are halal
Porcine collagen. Sourced from pig skin and bones. Cheap, abundant, and the most common source in the global collagen supply. It is unambiguously haram. Many brands list "collagen peptides" without specifying the source — and the unspecified default is often porcine.
Bovine collagen. Sourced from cow hides, bones, and connective tissue. Halal only if the cattle were slaughtered according to zabihah requirements. Most commercial bovine collagen comes from cattle slaughtered in standard non-halal facilities. This makes the collagen technically derived from a halal animal but slaughtered in a non-halal way — which renders it haram for most schools of fiqh.
A halal-certified bovine collagen specifies zabihah sourcing. An uncertified bovine collagen makes no such promise.
Marine collagen. Sourced from fish skin and scales. By the rules of halal, fish do not require zabihah slaughter to be permissible. Marine collagen is therefore halal by default, regardless of certification — though certification still verifies that no haram cross-contamination occurred during processing.
This is why marine collagen has become the default choice for Muslim consumers who want certainty without having to investigate every batch.
How to verify halal collagen
A halal collagen product should specify three things on its packaging or in its product details. The source — marine, bovine, or porcine. The certification — naming the certifying body, with a current certificate. And, for bovine collagen, an explicit statement of zabihah slaughter.
If a product just says "collagen peptides" with no source named, treat that as porcine until proven otherwise. The default in the global supply chain is the cheapest source. The cheapest source is pork.
If a product says "halal" in marketing copy but doesn't name a certifier, that's a claim, not a verification.
If a product names a certifier you can look up — IFANCA, ISA, HFCUSA, or a recognized international body — you have a verifiable halal product.
The other thing to check — the capsule
Even if the collagen powder itself is halal, many collagen products come in capsule form. The capsule shell is usually gelatin. Gelatin is usually porcine or non-zabihah bovine.
Powdered collagen avoids this entirely. Capsule collagen requires the capsule shell to be halal too.
The cleanest path is hydrolyzed marine collagen powder from a halal-certified manufacturer. No capsule question, no zabihah question, no source ambiguity.
What we use
Our Glow Collagen Peptides are sourced from halal suppliers and are documented in writing. We document the source in full. We don't ship product when the documentation lapses.
If you're switching from a brand that won't tell you its source, the transition is the easy part. The hard part is realizing how long you've been taking something nobody told you the truth about.