Last updated: 30 August 2026.
Quick answer: PCR (post-consumer recycled) resin is plastic recovered from used products and reprocessed into new packaging. GRS (Global Recycled Standard) is the certification that proves a claim like “30% recycled” is true, by tracing the material from the recycler to your finished bottle. For a brand, “recyclable” and “made with recycled content” are two different claims with two different levels of proof — and only the second one needs a certificate to be defensible at retail.
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Why the distinction between “recyclable” and “recycled” decides everything
Most brands blur two claims that are legally and practically different. Getting them straight is the first step toward a claim you can defend.
| Claim | What it means | Proof required |
|---|---|---|
| Recyclable | The package can be recycled in a real system | Usually a resin code (PET #1, HDPE #2) and access to a recycling stream |
| Made with recycled content | The package contains material that was already recycled | A certificate such as GRS with a transaction certificate and chain of custody |
| Biodegradable / compostable | The material breaks down in a specific environment | A defined standard test and certification — otherwise a regulated green claim |
The first row is about the future of the package. The second row is about its past. A bottle can be recyclable and contain zero recycled material, and many do. When a customer asks whether your packaging is “sustainable”, they are usually asking the second question, even if they do not know the word for it.
What PCR actually is, and what it is not
PCR is recovered post-consumer material: PET bottles collected from curbside programmes, washed, flaked, melted and re-pelletised. It is not the same as regrind, which is scrap from your own production line that never left the factory. Regrind is often added back at low percentages and does not count as recycled content in most certification schemes.
The material science matters to your product:
- Colour shifts. PCR resin carries a faint grey or yellow cast from the mixed input stream. A crystal-clear, colourless PET bottle is hard to hold with high PCR percentages.
- Clarity drops. Haze increases with recycled content, so a premium serum bottle may top out below a “clear glass look” threshold.
- Odour can carry over from the source stream, which matters for anything fragrance-adjacent.
- Consistency varies batch to batch, which is exactly why a certificate matters — it is the mechanism that disciplines the supply chain.
A supplier who promises PCR at virgin-resin appearance and virgin-resin price is describing something that does not exist.
What GRS actually certifies
The Global Recycled Standard (GRS) is managed by Textile Exchange and covers more than the recycled percentage. It verifies:
- The recycled content claim itself (e.g. “minimum 30% PCR”).
- Chain of custody from the recycler to the final product, via transaction certificates.
- Social and environmental criteria at the production site, such as waste handling and chemical restrictions.
A GRS certificate is specific to a facility and a product scope. Ask for the certificate number, the certified site, and — most importantly — a transaction certificate that covers your actual order. A GRS logo on a website is not the same thing as a transaction certificate for the bottles you are buying.
The green-claims risk you inherit as a brand
Recycled-content and recyclability claims are regulated marketing claims in the markets where most cosmetic brands sell.
- In the United States, the FTC Green Guides govern environmental marketing claims, and an unqualified “recycled” or “eco-friendly” claim is exactly what they are written against.
- In the European Union, the green-claims framework and the Packaging and Packaging Waste Regulation are pushing the same direction: a claim must be specific and substantiated.
The brand — not the bottle factory — carries the legal exposure for what is printed on the label. The factory’s job is to hand you the documentation so you are not making the claim blind.
How to make a recycled-content claim you can defend
Follow this sequence and the claim stops being an opinion and becomes a document.
- Decide the percentage you can hold, not the percentage you want on the box. A stable 30% is worth more than a drifting 100%.
- Ask for the GRS certificate and a transaction certificate for your specific order, not a generic PDF.
- Request a PCR sample against your colour and clarity standard, and approve it the same way you approve a Pantone.
- Confirm the percentage on the technical data sheet, and keep it for the compliance file.
- State the claim narrowly on the label: “bottle body contains at least 30% post-consumer recycled PET” is defensible; “eco-friendly” is not.
Frequently asked questions
What is the difference between PCR and rPET?
PCR is the category — post-consumer recycled material. rPET is the specific case where the recycled material is PET. Every rPET bottle contains PCR, but PCR can also be HDPE, PP or another resin.
Does PCR cost more than virgin resin?
Usually, yes. Recycled PET flake and pellet can carry a premium in some markets and seasons, and the quality-control burden is higher. Treat a PCR bottle that is cheaper than virgin as a flag to check the certificate.
What percentage of PCR is realistic in a cosmetic bottle?
It depends on the resin and the appearance target. PET can commonly reach 30-100% for opaque or tinted bottles, while a crystal-clear premium bottle may be limited to a lower percentage before haze and colour cast become visible.
Do I need GRS to sell in the EU?
You do not strictly need GRS to sell, but if you print a recycled-content claim, you need evidence. GRS is the most widely recognised way to provide that evidence in the EU and North America.
Is “recyclable” enough to call my packaging sustainable?
Not on its own. Recyclable describes the package’s end-of-life potential, not its content. Pairing “recyclable” with a specific recycled-content percentage backed by a certificate is the defensible combination.
Can I put the GRS logo on my bottle?
Only if the finished product is within a certified chain and you hold the corresponding transaction certificate. Ask your supplier to confirm the scope before you print anything.
Next step
If you are weighing a PCR or GRS claim for a cosmetic or daily-chemical bottle, tell us your target percentage and the appearance you need to hold, and we will tell you what is realistic in PET or HDPE — and whether we can supply the transaction certificate to back it.
Shijin Packaging — factory-direct cosmetic and daily-chemical plastic bottles since 2003, operating 30+ automatic blow-moulding lines and 10+ injection-moulding machines across a 15,000 m² facility in Huizhou, Guangdong, with daily capacity of approximately 200,000 pieces.
- Website: https://shijinpackaging.com
- Full catalogue: https://shijinpackaging.com/catalog/
- Email: sales@shijinpackaging.com