Many people notice their skin becomes shiny or greasy during summer, even after cleansing. This isn’t because your skin is “dirty” — it’s a normal physiological reaction. But without proper care, excess oil can lead to clogged pores and breakouts.
Here’s a complete explanation of why your skin gets oilier in hot weather and how to manage it effectively.
1. Heat stimulates the sebaceous glands
High temperatures increase body heat → skin produces more oil to protect itself. The T-zone becomes especially oily.
✔ Solution:
- Use gentle cleansers that don’t strip the skin
- Choose gel cleansers
- Wash your face twice a day only
2. UV and heat cause dehydration → skin produces more oil
Summer heat evaporates moisture from the skin. When the skin becomes dehydrated, it compensates by producing more oil.
✔ Solution:
- Add hydrating ingredients like HA, glycerin, B5
- Use lightweight gel moisturizers
- Stay hydrated throughout the day
3. Sweat mixes with oil, making skin feel greasier
Sweat pushes oil to the surface, causing a shiny appearance.
✔ Solution:
- Use blotting papers (press gently)
- Cleanse after heavy sweating
- Avoid rubbing with tissues or wipes
4. Sunscreen texture may be too heavy
Thick or oily sunscreens can feel greasy in summer.
✔ Solution:
- Choose gel, water-based, or oil-free sunscreens
- SPF 30–50, PA++++
- Opt for matte-finish formulas
5. Lifestyle habits also increase oil production
- Lack of sleep
- Oily or fried foods
- Stress
- Sun exposure
All of these stimulate oil glands.
✔ Solution:
- Maintain good sleep habits
- Eat more vegetables and fruits
- Reduce fried foods
- Protect skin with hats or umbrellas
6. Over-cleansing or over-exfoliating backfires
Harsh products strip the skin → skin produces even more oil.
✔ Solution:
- Use oil-control products moderately
- Clay masks 1–2 times/week
- Avoid strong alcohol-based toners
Oily skin in summer is normal.
The key is hydration, lightweight moisturization, and gentle cleansing. With the right routine, your skin can stay balanced even in hot weather.
Recommended Ingredients for Sebum Control
During summer, sebum production tends to increase. The following ingredients are commonly used in skincare formulations designed to regulate excess oil:
- Green Tea Extract — Rich in catechins that help suppress sebaceous gland activity and soothe heat‑induced flushing.
- Niacinamide (Vitamin B3) — Reduces sebum production, tightens pores, and strengthens the skin barrier.
- L‑Carnitine — Supports fatty acid metabolism, helping decrease excess surface oil.
- Licochalcone A (from licorice root) — Excellent for oil control and anti‑inflammatory effects, making it effective for acne that worsens in summer.
These ingredients are ideal for developing summer skincare products such as gel creams, oil‑control serums, balancing toners, and sunscreens formulated for oily skin.
Interested in Developing an OEM Product With These Ingredients?
We support OEM production starting from 1,000 pcs, including:
- Packaging selection, stability testing, irritation testing
- Transparent process with optimized cost
Contact us for formula consultation and detailed quotation in here.