SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.short_description, 
  IF(
    cscart_product_descriptions.short_description = '' 
    OR cscart_product_descriptions.short_description IS NULL, 
    cscart_product_descriptions.full_description, 
    ''
  ) AS full_description, 
  cscart_product_descriptions.meta_keywords, 
  cscart_product_descriptions.meta_description, 
  cscart_product_descriptions.search_words, 
  cscart_product_descriptions.promo_text 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    24185, 24181, 24204, 24172, 24217, 24211, 
    24177, 24186, 24200, 24197, 24196, 
    24210, 24208, 24175, 24178, 22731, 
    23137, 23009, 22732, 22581, 23384, 
    23010, 23366, 22733
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00196

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_descriptions",
          "access_type": "range",
          "possible_keys": ["PRIMARY", "product_id"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["product_id", "lang_code"],
          "rows": 24,
          "filtered": 100,
          "index_condition": "cscart_product_descriptions.product_id in (24185,24181,24204,24172,24217,24211,24177,24186,24200,24197,24196,24210,24208,24175,24178,22731,23137,23009,22732,22581,23384,23010,23366,22733) and cscart_product_descriptions.lang_code = 'en'"
        }
      }
    ]
  }
}

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text
22581
22731
22732
22733
23009
23010
23137
23366
23384
24172
24175
24177
24178
24181
24185
24186
24196
24197
24200
24204
24208
24210
24211
24217