Reese's peanut butter cups, and most other Reese's products, contain no pork, no gelatin and no alcohol, so they are halal by their ingredients. Their ingredients are chocolate, peanuts, sugar, milk and emulsifiers. We mark them "depends" because there is no US halal certification, and nobody has independently confirmed the sources of the emulsifier (such as PGPR) and the whey. Most scholars accept Reese's as halal by their ingredients, and a certificate would remove any remaining doubt.
HalalVouch presents evidence and does not issue religious rulings — you decide.
The short answer
Reese's peanut butter cups and most Reese's products contain no pork, no gelatin and no alcohol. So they are halal by their ingredients. They simply are not certified in the United States.
What is in Reese's?
Reese's are made from milk chocolate, peanuts, sugar, dextrose and salt, along with emulsifiers such as PGPR and lecithin. Emulsifiers help the chocolate and peanut butter stay smooth. There is no gelatin and no pork.
Why do we mark Reese's "depends"?
There is no US halal certificate. Also, nobody has independently confirmed the sources of two ingredients, the PGPR emulsifier and the whey. Neither ingredient has been flagged as coming from a problem animal source. So the best description of Reese's is "halal by ingredients, not certified," which most scholars accept.
Common questions
Are Reese's halal?
They are halal by their ingredients, with no pork, gelatin or alcohol. However, they are not certified in the United States.
Do Reese's contain gelatin or pork?
No. The standard products contain neither.
Is the PGPR in Reese's halal?
Yes. PGPR is made from castor oil and is generally considered halal.
Are Reese's Pieces halal?
Reese's Pieces are a candy-coated peanut butter treat. They contain no gelatin or pork in their standard recipe, but check the label for shellac or confectioner's glaze if you avoid it.
Sources
Where this answer comes from — check them yourself.
- The Hershey Company — official product & ingredient informationChecked June 22, 2026
- American Halal Foundation — Halal & haram ingredients guideChecked June 22, 2026
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We present the evidence we found and when we checked it — we do not issue Islamic rulings. Practices and formulations change, so confirm directly before you rely on this. You decide. How we research these answers.
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