SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    45508, 34675, 31912, 5782, 3580, 34670, 
    37098, 26892, 1717, 37092, 2154, 4513, 
    6611, 26880, 36763, 41279, 37093, 386, 
    3873, 1584, 36762, 40435, 26895, 23050, 
    26894, 38797, 26891, 40438, 4442, 26887, 
    45360, 23044
  )

Query time 0.00375

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "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 (45508,34675,31912,5782,3580,34670,37098,26892,1717,37092,2154,4513,6611,26880,36763,41279,37093,386,3873,1584,36762,40435,26895,23050,26894,38797,26891,40438,4442,26887,45360,23044)"
        }
      }
    ]
  }
}