Glaze

ジャーナル

肌の記録のしかた、自分の変化の読み方、知っておきたい成分について、わかりやすく書いたノート。

すべて43 basics20 tracking19 method17 ingredients12 troubleshooting12 photos6

When does skincare expire? Reading the PAO symbol

Most skincare uses a period-after-opening symbol rather than a hard expiry date. Learn when its clock starts and what to record.

basics

5 分で読めます2026年8月22日

How to work out cost per use for skincare

Calculate skincare cost per use from price and actual uses, then keep it separate from the harder question of whether a product worked.

tracking

5 分で読めます2026年8月18日

How to track possible breakout triggers

A breakout after one unusual day does not prove a cause. Use a simple log to find repeated patterns without blaming everything at once.

tracking

5 分で読めます2026年7月28日

What order should you apply skincare products?

Cleanse first, treatments next, moisturiser after, and sunscreen last in the morning. Learn the logic behind a flexible routine order.

basics

4 分で読めます2026年7月26日

Why add one skincare product at a time?

Changing several products at once hides what helped or caused trouble. A one-at-a-time method gives you a result you can use.

method

4 分で読めます2026年7月25日

Progress photos that actually compare

Most skincare photos are useless because the lighting and angle change. Here is how to shoot a set you can actually trust.

photos

3 分で読めます2026年6月11日

How to track skin changes through your period cycle

Track skin through several menstrual cycles using cycle day, breakout area, routine, and weekly photos. Look for repetition, not one month.

tracking

3 分で読めます2026年5月14日

Why do skincare products pill on your skin?

Skincare pills when layers form small rolls from excess product, rubbing, incompatible textures, or rushed layering. Test one cause at a time.

troubleshooting

3 分で読めます2026年3月25日

Should you change skincare with the seasons?

Change skincare for observed seasonal needs, not the calendar alone. Keep a baseline, adjust one variable, and compare comfort and photos.

method

3 分で読めます2026年2月15日

How to layer skincare actives without guesswork

Layer skincare actives by following labels, separating uncertain combinations, and introducing one change at a time instead of stacking.

ingredients

3 分で読めます2026年1月21日

How long should you wait between skincare steps?

Most skincare steps need only enough time to spread and settle. Follow labels for exceptions, and use less product if layers keep pilling.

basics

3 分で読めます2025年12月27日

Morning vs night skincare: what changes?

Morning skincare prepares for the day; evening skincare removes the day and supports your chosen routine. Keep both simple and distinct.

basics

3 分で読めます2025年12月14日

How to stay consistent with your skincare routine

Make skincare consistent by keeping the routine small, attaching it to habits you already have, and tracking completion without perfection.

basics

3 分で読めます2025年11月19日

How long should you test a skincare product?

Give a skincare product a planned test based on its purpose, label, and your response. Track one change and review it over weeks.

method

3 分で読めます2025年10月25日

How to compare skincare products fairly

Compare skincare products one at a time, against the same baseline and routine. Use dated notes and photos instead of first impressions.

method

3 分で読めます2025年9月30日

How to use a skincare routine tracker

A useful skincare routine tracker records what you actually used, when it changed, and how your skin responded without becoming a chore.

tracking

3 分で読めます2025年9月5日

What is the best lighting for skin progress photos?

Use soft, indirect daylight or one fixed indoor light for skin photos. Keep its direction, brightness, camera, and exposure unchanged.

photos

4 分で読めます2025年8月11日