SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10365, 10337, 10364, 10336, 10363, 10335, 
    10362, 10334, 10361, 10381, 10312, 
    10333, 10360, 10380, 10311, 10332, 
    10359, 10379, 10310, 10331
  )

Query time 0.00089

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 (10365,10337,10364,10336,10363,10335,10362,10334,10361,10381,10312,10333,10360,10380,10311,10332,10359,10379,10310,10331)"
    }
  }
}