SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    9905, 10168, 10041, 10643, 10606, 10094, 
    10097, 12703, 10177, 10175, 9813, 10095, 
    9904, 10178, 10644, 10093, 10096, 10167
  )

Query time 0.00057

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": 18,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (9905,10168,10041,10643,10606,10094,10097,12703,10177,10175,9813,10095,9904,10178,10644,10093,10096,10167)"
    }
  }
}