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Shamp👀 · FAQ · Product Safety · 公開 2026-05-01 Updated 2026-05-01

Product Shelf Life & Storage FAQ — Expert Tips

要約

Frequently asked questions about product shelf life & storage for salons, focusing on expert tips.

📑 目次
  1. Q1. PAO symbol on products not tracked after opening
  2. Q2. Expired products on shelves used 'until finished'
  3. Q3. No FIFO rotation — oldest stock buried behind new
  4. Q4. Open-date labels not applied when product first opened
  5. Q5. Temperature-sensitive products (hydrogen peroxide) stored near heat
  6. Q6. Multi-use products (colour tubes) opened date unknown
  7. Q7. Salon owner unaware that expired products void insurance
  8. Dialogue
    1. 🦉 & 🐥 & 🐮 — Salon operator dialogue
  9. Primary sources (national & international authorities)
    1. Related Articles
    2. サロンの衛生記録を自動化しませんか？
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Q1. PAO symbol on products not tracked after opening

A: General solution

Q2. Expired products on shelves used 'until finished'

A: General solution

Q3. No FIFO rotation — oldest stock buried behind new

A: General solution

Q4. Open-date labels not applied when product first opened

A: General solution

🛠️ 関連する無料ツール: Run our salon opening checklist 無料で試す →

Q5. Temperature-sensitive products (hydrogen peroxide) stored near heat

A: General solution

Q6. Multi-use products (colour tubes) opened date unknown

A: General solution

Q7. Salon owner unaware that expired products void insurance

A: General solution

Dialogue

🦉 & 🐥 & 🐮 — Salon operator dialogue

🐥
Piyo: Poppo, what does the little open-jar symbol on products mean?
🦉
Poppo: That's the PAO — Period After Opening. '12M' means the product is safe for 12 months after you first open it. After that, preservatives degrade, bacteria colonise, and active ingredients lose potency. An expired hair dye doesn't just perform poorly — it may cause unpredictable reactions.
🐥
Piyo: Should salons track opening dates?
🦉
Poppo: Absolutely. Write the date you opened it on the container with a permanent marker. FIFO (First In, First Out) for stock rotation. Remove expired products from shelves immediately. It's basic inventory management that prevents safety incidents.
🐮
Mou: Strong, kind, beautiful — an expired product is a broken promise to your client.

Primary sources (national & international authorities)

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重要な免責事項： MmowWは美容衛生認証機関ではありません。上記の内容は、各国当局の一次ソース（WHO・FDA・EU規則1223/2009・各国衛生当局）から抽出した教育目的のベストプラクティス情報です。最終責任はサロン事業者および所轄当局にあります。常に一次ソースおよびお住まいの規制当局でご確認ください。
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澤井 隆行 — 行政書士

行政書士・MmowW創業者。世界中のサロン衛生コンプライアンスを極楽にする。

安全で、愛される。