SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10533, 10534, 10535, 10536, 10537, 10538, 
    10539, 10540, 10541, 10542, 10524, 
    10543, 10544, 13013, 13014, 13015, 
    13016, 13017, 13018, 13019
  )

Query time 0.00165

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 20,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (10533,10534,10535,10536,10537,10538,10539,10540,10541,10542,10524,10543,10544,13013,13014,13015,13016,13017,13018,13019)"
    }
  }
}