SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    28, 74, 112, 111, 61, 60, 72, 73, 24, 44, 
    27, 50, 51, 42, 43, 41, 88, 46, 79, 58
  )

Query time 0.00096

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 (28,74,112,111,61,60,72,73,24,44,27,50,51,42,43,41,88,46,79,58)"
    }
  }
}