SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10097, 9760, 9759, 9934, 9933, 9932, 
    9931, 9936, 9947, 9953, 9952, 10074, 
    10096, 10075, 10602, 10087
  )

Query time 0.00071

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": 16,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (10097,9760,9759,9934,9933,9932,9931,9936,9947,9953,9952,10074,10096,10075,10602,10087)"
    }
  }
}