SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    454777, 444113, 417555, 428819, 454049, 
    459252, 405167, 401806, 425534, 458860, 
    447690, 422606
  )

Query time 0.00078

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 (454777,444113,417555,428819,454049,459252,405167,401806,425534,458860,447690,422606)"
        }
      }
    ]
  }
}