10 Best The Ordinary Hair Serum For Hair Growth Of 2026

The Ordinary Hair Serum For Hair Growth — Reviews, Recommendations & Updated Buying Guide September 2026

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執筆 Adam · 製品レビュアー
最終更新 2026年9月
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10 Best The Ordinary Hair Serum For Hair Growth Of 2026

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購入ガイド: The Ordinary Hair Serum For Hair Growth

1What's the difference between The Ordinary hair serums for growth?

The Ordinary offers a few hair care products, but their Multi-Peptide Serum for Hair Density is their main growth-focused option. It uses peptides to strengthen hair and improve thickness, while other serums focus on scalp health or moisture—check the ingredient list to ensure you're getting the right formula for your goal.

2How long does it take to see results from The Ordinary hair serum?

Most users notice visible improvements in hair thickness and strength within 8-12 weeks of consistent daily use. Hair growth itself is a slow process, so patience is key—inconsistent application will delay or prevent results.

3Can I use this serum if I have sensitive scalp?

The Ordinary's hair serums are generally well-tolerated, but check the ingredient list for potential irritants if you have a sensitive scalp. Do a patch test on a small area first, especially if you're prone to reactions from active ingredients.

4What bottle size should I buy, and how long does it last?

The Ordinary hair serums typically come in 60ml bottles, which lasts about 3-4 months with daily use since you only need a small amount per application. If you're new to the product, start with one bottle to test compatibility before committing to larger quantities.

5Should I use this serum with other hair growth products?

Yes, you can layer it with other treatments like shampoos or scalp treatments, but avoid mixing multiple actives that target the same concern on the same day. Stick to the recommended usage (usually once or twice daily) and introduce one product at a time to track what's actually working for you.

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