Here are a few options for the description of a WordPress post tag with the title “合利他命ex plus” in Traditional Chinese, ranging from simple to more detailed:

**Option 1 (Short & Simple):**

> 合利他命ex plus，維生素B群補充劑。

**(Translation: Hialin B Ex Plus, Vitamin B complex supplement.)**

**Option 2 (More Descriptive):**

> 探索合利他命ex plus 的功效，這是一款針對疲勞、眼部疲勞、肩頸僵硬等問題的維生素B群補充劑。了解其成分、使用方法以及可能带来的益處。

**(Translation: Explore the effectiveness of Hialin B Ex Plus, a vitamin B complex supplement addressing fatigue, eye strain, stiff shoulders, and neck. Learn about its ingredients, usage, and potential benefits.)**

**Option 3 (Focusing on Benefits):**

> 合利他命ex plus： 緩解疲勞，補充體力，改善眼部不適、肩頸僵硬等問題。 幫助您重拾活力，精神奕奕。

**(Translation: Hialin B Ex Plus: Relieves fatigue, replenishes energy, and improves issues like eye discomfort and stiff shoulders and neck. Helps you regain vitality and be energetic.)**

**Option 4 (SEO-Friendly – includes keywords):**

> 了解合利他命ex plus， 日本熱銷的維生素B群補充劑，專為改善疲勞、眼部疲勞、肩頸僵硬而設計。 探索其成分，如維生素B1、B6、B12等，以及如何有效緩解疲勞。 尋找合利他命ex plus 的最佳推薦，以及如何購買及使用。

**(Translation: Understand Hialin B Ex Plus, a popular vitamin B complex supplement in Japan, designed to improve fatigue, eye strain, and stiff shoulders and neck. Explore its ingredients, such as vitamins B1, B6, and B12, and how to effectively relieve fatigue. Find the best recommendations for Hialin B Ex Plus, and how to purchase and use it.)**

**Which option should you use?**

* **Option 1:** Best if you’re short on space or want a very basic description.
* **Option 2 & 3:** Offer a good balance of information and are suitable for most situations.
* **Option 4:** Good for SEO; if you want to increase visibility in search engines which would target people searching information about the product. It incorporates keywords, which can improve search engine results.

**Remember to consider:**

* **Your audience:** Who is your target audience? What level of detail do they need?
* **The content of your posts:** The description should relate well to the posts that will be tagged with “合利他命ex plus.”
* **Search Engine Optimization (SEO):** If you want people to find your posts using search engines, include relevant keywords (like the product name, key benefits, and related conditions) in your description. I have added this in option 4.
* **Spacing and Length:** Wordpress tag descriptions appear differently in different themes. Consider how long to keep the descriptions. Truncation is common.