diff --git a/vtex/loaders/legacy/productList.ts b/vtex/loaders/legacy/productList.ts
index fca73af32..ca530cd44 100644
--- a/vtex/loaders/legacy/productList.ts
+++ b/vtex/loaders/legacy/productList.ts
@@ -118,6 +118,12 @@ const isFQProps = (p: any): p is FQProps => isValidArrayProp(p.fq);
 // deno-lint-ignore no-explicit-any
 const isTermProps = (p: any): p is TermProps => typeof p.term === "string";
 
+const sanitizeNumericIds = (ids: string[] | undefined): string[] => {
+  return (ids || [])
+    .filter((id) => id && /^\d+$/.test(id.trim()))
+    .map((id) => id.trim());
+};
+
 const preferredSKU = (items: LegacyItem[], { props }: Props) => {
   const fetchedSkus = new Set((props as SkuIDProps).ids ?? []);
   return items.find((item) => fetchedSkus.has(item.itemId)) || items[0];
@@ -133,7 +139,7 @@ const fromProps = ({ props }: Props) => {
   };
 
   if (isSKUIDProps(props)) {
-    const skuIds = props.ids || [];
+    const skuIds = sanitizeNumericIds(props.ids);
 
     skuIds.forEach((skuId) => params.fq.push(`skuId:${skuId}`));
     params._from = 0;
@@ -143,7 +149,7 @@ const fromProps = ({ props }: Props) => {
   }
 
   if (isProductIDProps(props)) {
-    const productIds = props.productIds || [];
+    const productIds = sanitizeNumericIds(props.productIds);
 
     productIds.forEach((productId) => params.fq.push(`productId:${productId}`));
     params._from = 0;
@@ -303,14 +309,12 @@ export const cacheKey = (
   ]);
 
   if (isSKUIDProps(props)) {
-    const skuIds = [...props.ids ?? []]?.sort();
+    const skuIds = sanitizeNumericIds(props.ids).sort();
     params.append("skuids", skuIds.join(","));
   }
 
-  if (
-    isProductIDProps(props)
-  ) {
-    const productIds = [props.productIds ?? []].sort();
+  if (isProductIDProps(props)) {
+    const productIds = sanitizeNumericIds(props.productIds).sort();
     params.append("productids", productIds.join(","));
   }