Intro
Oily scalp in summer is the worst. You wash your hair today, and by tomorrow it looks greasy, flat, and smells bad. The heat, humidity, and wrong products make your scalp produce 3x more oil.
In this article, I’ll share 9 science-backed fixes that actually work, and 5 mistakes that are making your oily scalp worse.
1. Why Does Oily Scalp Happen in Summer? 3 Main Reasons
In summer, your oil glands work overtime. Here’s why:
- Heat + Humidity: Sweat opens pores and boosts oil production
- Wrong Shampoo: Harsh sulfate shampoos strip oil. Your scalp then makes even more oil to balance it
- Diet: Too much dairy, sugar, and fried food increases oil
Studies show that above 30°C, sebum production can increase by up to 40%.
2. 9 Proven Fixes For Oily Scalp in Summer That Actually Work
1. Use Clarifying Shampoo – Once a Week
Regular shampoo won’t remove buildup. Use a salicylic acid or tea tree clarifying shampoo once a week. Use mild shampoo on other days.
2. Apple Cider Vinegar Rinse
Mix 1 tbsp ACV (apple cider vinegar) in 1 mug of water. Use it as a final rinse after shampoo. It balances scalp pH and cuts oil. (ACV helps balance scalp pH levels) [research].
👉 Read More: Scalp Care for Hair Growth: 7 Mistakes to Avoid
3. Change Your Wash Technique
Only apply shampoo to roots. Apply conditioner only to hair ends. If you wash daily, use a “co-wash” or very mild shampoo.
4. Ice Massage for Scalp
Wrap an ice cube in a towel and roll it on your scalp for 2 minutes. It tightens pores = less oil.
5. Fix Your Diet
Zinc, Vitamin B, and Omega-3 help control oil. Add almonds, eggs, and spinach to your meals.
6. Use Dry Shampoo
No time to wash? Use cornstarch or a store-bought dry shampoo on roots. Instant freshness.
7. Change Pillowcase Daily
Oily scalp = dirty pillow. Oil goes right back into your hair at night. Use a cotton pillowcase.
8. Avoid Tight Hats and Caps
No airflow = more sweat + fungus + oil. Take your hat off as soon as you get home.
9. Try a Niacinamide Scalp Serum
If home remedies fail, a 5% niacinamide serum helps control oil production.
✅ Quick Checklist: Fix Oily Scalp in Summer
Follow this list and see results in 7 days:
- ✔ Wash hair 2-3 times per week with a clarifying shampoo
- ✔ Apply lightweight conditioner only to the hair ends
- ✔ Rinse with cold water to close oil glands
- ✔ Use an ACV rinse once a week to balance scalp pH
- ✔ Avoid heavy hair oils and touching your hair too much
- ✔ Keep pillowcases clean and change them every 3 days
- ✔ Eat less sugar and dairy during summer
- ✔ Use dry shampoo between washes for volume
- ✔ See a dermatologist if you notice increased hair fall
Pro Tip: Take a screenshot and save it to your phone for easy reference 😉
3. 5 Mistakes That Make Oily Scalp Worse
Avoid these or all your effort will be wasted:
- Washing with Harsh Shampoo Daily: Strips oil and triggers more oil
- Putting Conditioner on Roots: Only use on ends
- Touching Hair Again and Again: Transfers oil and dirt from hands
- Washing with Hot Water: Use lukewarm water instead
- Skipping Oil Completely: Light oiling once a week is important. No oil = dry scalp = more oil
- 👉 Related: Dandruff Treatment 2026: 5 Proven Ways That Actually Work
🚫 Avoid These: Oily Scalp Mistakes Checklist
Stop doing these 5 things today:
- ✖ Washing hair every single day with harsh shampoo
- ✖ Applying conditioner to roots instead of just ends
- ✖ Using heavy coconut oil treatments in summer
- ✖ Touching hair and running fingers through scalp
- ✖ Skipping weekly clarifying or ACV rinse
Remember: Avoiding mistakes is 50% of the solution.
4. When to See a Dermatologist?
See a doctor if after 2 weeks you still have:
- Itching + red bumps
- Hair falling in clumps
- Bad smell from scalp
This could be a fungal infection or seborrheic dermatitis.
Note: This article is for information only. Please consult a dermatologist for diagnosis.
If oily scalp is with hair loss, consult a dermatologist [American Academy of Dermatology].
FAQs – Oily Scalp in Summer
Q1: Is it okay to wash hair daily with oily scalp?
A. Yes, but only with a mild sulfate-free shampoo. Harsh shampoo will make it worse.
Q2: What is the best oil for oily scalp?
A. Jojoba oil or tea tree oil. Mix 2-3 drops with carrier oil and leave for 20 min. Avoid coconut oil.
Q3: Can oily scalp cause hair fall?
A. Yes. Too much oil clogs follicles and makes hair weak. We also covered this in our Dandruff Treatment guide.
Q4: How often should I shampoo in summer?
Oily scalp: Every other day. Dry scalp: 2 times a week.
Conclusion
Don’t ignore oily scalp in summer. With the right shampoo, wash method, and 2-3 home remedies, you’ll see results in 10 days. Remember: Clean scalp = Strong hair.
Haven’t read our 7 Mistakes That Kill Your Hair article yet? Check it out for more scalp tips.
Can these oily hairs have effect to cause acne on your forehead ???
Can this oily scalp have effect to cause acne on your forehead ???
If yes then make a new article related to this 🙃
Can this oily scalp have effect to cause acne on your forehead??
Can this oily scalp have effect to cause the acne on your forehead???? If yes then shared an article on this
Yes absolutely! Oily scalp and dandruff can clog forehead pores and cause acne.
Tip: Wash hair 2-3 times a week, avoid heavy hair oils on scalp, and use a gentle anti-dandruff shampoo.
I’ll be covering this topic in detail on Medzfits soon. Thanks for asking!