SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    1368, 1321, 1367, 1366, 1365, 1364, 1363, 
    1362, 1361, 1360, 1359, 1358, 1357, 
    1356, 1355, 1354, 1353, 1352, 1351, 
    1350, 1349, 1348, 1346, 1036, 1345, 
    1335, 1344, 1343, 1336, 1334, 1333, 
    1332, 1331, 1329, 1328, 1327, 1326, 
    1325, 1323, 1322, 1320, 1300, 1301, 
    1302, 1303, 1312, 1304, 1305
  )

Query time 0.00186

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": 48,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (1368,1321,1367,1366,1365,1364,1363,1362,1361,1360,1359,1358,1357,1356,1355,1354,1353,1352,1351,1350,1349,1348,1346,1036,1345,1335,1344,1343,1336,1334,1333,1332,1331,1329,1328,1327,1326,1325,1323,1322,1320,1300,1301,1302,1303,1312,1304,1305)"
    }
  }
}