SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10068, 10065, 10061, 10050, 10056, 10044, 
    10069, 10066, 12671, 12672, 15779, 
    12673, 12674, 12675, 12676, 12677, 
    12678, 12679, 10024, 10025, 10026, 
    10027, 10028, 10029, 10030, 10031, 
    10032, 10033, 10034, 10035, 10036, 
    10037, 10038, 10039, 10040, 10756, 
    10757, 10758, 10397, 10398, 10399, 
    10400, 10401, 10402, 12700, 10596, 
    10597, 10598, 10599, 10600, 10521, 
    10520, 10519, 10518, 10517, 10516, 
    10515, 10514, 10513, 10512, 10511, 
    10510, 10509, 10508
  )

Query time 0.00183

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": 64,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (10068,10065,10061,10050,10056,10044,10069,10066,12671,12672,15779,12673,12674,12675,12676,12677,12678,12679,10024,10025,10026,10027,10028,10029,10030,10031,10032,10033,10034,10035,10036,10037,10038,10039,10040,10756,10757,10758,10397,10398,10399,10400,10401,10402,12700,10596,10597,10598,10599,10600,10521,10520,10519,10518,10517,10516,10515,10514,10513,10512,10511,10510,10509,10508)"
    }
  }
}