SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    15744, 12632, 12633, 10179, 10180, 10523, 
    10073, 10077, 10076, 10086, 10085, 
    10084, 10083, 10082, 10081, 10080, 
    10079, 10584, 10594, 12574, 10168, 
    10167, 12703, 15968, 15938, 10053, 
    10041, 9904, 9905, 15966, 15965, 9940
  )

Query time 0.00370

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": 32,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (15744,12632,12633,10179,10180,10523,10073,10077,10076,10086,10085,10084,10083,10082,10081,10080,10079,10584,10594,12574,10168,10167,12703,15968,15938,10053,10041,9904,9905,15966,15965,9940)"
    }
  }
}