SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    1947, 1458, 1460, 1464, 1455, 1382, 1385, 
    1383, 1386, 25, 1758, 1757, 1734, 1254, 
    1684, 1379, 1378, 1792, 1791, 1793, 
    1789, 1716, 1714, 1715, 1720, 1719, 
    1722, 1713, 1718, 1717, 1867, 1721, 
    1685, 1207, 1210, 1203, 1389, 1188, 
    1190, 1209, 1186, 1852, 1456, 1457, 
    1045, 1046, 1187, 1577, 1194, 368, 1253
  )

Query time 0.00175

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": 51,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (1947,1458,1460,1464,1455,1382,1385,1383,1386,25,1758,1757,1734,1254,1684,1379,1378,1792,1791,1793,1789,1716,1714,1715,1720,1719,1722,1713,1718,1717,1867,1721,1685,1207,1210,1203,1389,1188,1190,1209,1186,1852,1456,1457,1045,1046,1187,1577,1194,368,1253)"
    }
  }
}