SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    442532, 408975, 443876, 402463, 438541, 
    427151, 454935, 437239, 452456, 406327, 
    412758, 433230
  )

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.0216566,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_products",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "loops": 1,
          "rows": 12,
          "cost": 0.0216566,
          "filtered": 100,
          "attached_condition": "cscart_products.product_id in (442532,408975,443876,402463,438541,427151,454935,437239,452456,406327,412758,433230)"
        }
      }
    ]
  }
}