OLAPLEX No.4Fine Bond Maintenance Volumizing and Strengthening Shampoo

The No.4FINE Bond Maintenance® Volumizing and Strengthening Shampoo is a standout option for anyone with fine hair who wants both body and strength—without compromising hair health. As someone who is always cautious with volumizing products (because they often dry my hair out or leave it feeling stripped), I was genuinely impressed with how balanced and effective this shampoo is. What immediately sets No.4FINE apart is that it's specifically formulated for fine and thinning hair, yet it still delivers the signature bond-building benefits Olaplex is known for. Many volumizing shampoos focus only on lift, but this one goes further by reinforcing hair from the inside out. Powered by Olaplex's patented bond-building technology, it helps repair broken disulfide bonds caused by heat styling, coloring, and everyday wear and tear—something fine hair desperately needs. From the very first wash, I noticed how lightweight the formula felt. The shampoo lathers beautifully without being heavy or overly creamy, which is crucial for fine hair that can easily get weighed down. It cleanses thoroughly, removing oil and buildup, yet never leaves the scalp feeling tight or stripped. Instead, my hair felt soft, clean, and surprisingly hydrated—without that flat, limp feeling that often comes after washing. One of the most noticeable benefits is the volume at the roots. My hair had a natural lift and bounce once it dried, even without styling products. The volume wasn't stiff or artificial; it looked healthy and touchable. Over continued use, my hair also felt stronger and more resilient, with noticeably less breakage during brushing and styling. Fine hair is prone to snapping, so this strengthening effect was a huge win for me. Another major plus is that No.4FINE is color-safe and sulfate-free, making it a great option for chemically treated hair. I've found that my color looks fresher for longer, and my hair has more shine compared to when I use traditional volumizing shampoos. It's also free of parabens and phthalates, which adds to the overall premium, clean-feeling experience. The scent is subtle and sophisticated—clean, slightly fresh, and not overpowering. It feels salon-quality without lingering too strongly, which I appreciate, especially when layering with other hair products. When paired with the No.5FINE Conditioner, the results are even better: volume without tangles, softness without heaviness. What I appreciate most about No.4FINE is that it doesn't force you to choose between volume and hair health. It proves that fine hair can have fullness while still being nourished and repaired. After several weeks of use, my hair looks thicker, feels stronger, and styles better overall. Blowouts last longer, and my hair holds shape without falling flat halfway through the day. While it is on the higher end price-wise, a little goes a long way, and the results justify the investment—especially if you struggle to find products that work well for fine hair without damage. This shampoo feels thoughtfully designed and truly delivers on its promises. Overall, No.4FINE Bond Maintenance® Volumizing and Strengthening Shampoo is an excellent choice for anyone with fine or thinning hair looking for volume, strength, and long-term hair health. It's effective, gentle, and delivers visible results—making it a staple-worthy addition to any fine-hair routine.

The Fine line is perfect for my fine hair and I also use the fine conditioner. Great products

I've been using Olaplex No.4 Shampoo for a few weeks now, and I can already see a huge difference. My hair feels stronger, smoother, and much healthier. It cleans gently without stripping moisture, and the shine it gives is amazing. A little goes a long way, so the bottle lasts a long time. If your hair is damaged, dry, or needs extra love, this shampoo is absolutely worth it. Highly recommend!

I've been using the OLAPLEX No.4 FINE Bond Maintenance Shampoo for a few weeks now, and honestly, it has impressed me more than I expected. My hair is naturally on the finer side and tends to feel weighed down easily, especially with hydrating or bond-repair shampoos. But this formula is surprisingly lightweight while still giving that signature OLAPLEX strength and softness. The texture feels silky, it lathers well without feeling harsh, and it rinses out cleanly without leaving residue. What I love most is how balanced it feels. It gives my hair a healthier look with less breakage, smoother ends, and noticeably more movement. It doesn't strip the hair, but it also doesn't overwhelm it with moisture, which is rare for bond-repair lines. My hair looks shinier and feels stronger, yet still light and bouncy — exactly what I want from a shampoo made for fine hair. If you're someone with fine or easily weighed-down strands who still wants the benefits of OLAPLEX repair, this shampoo fits perfectly. It delivers the bond-building results without compromising volume. I also noticed my hair feels cleaner for longer, which is a big plus. Overall, it's an excellent option for anyone wanting strength, softness, and weightless hydration all at once. Product was received as part of an educational promotion.

I was gifted the No.4 Fine Bond Maintenance Volumizing and Strengthening Shampoo in exchange for my honest review, and unfortunately it just didn't work for me. No matter how thoroughly I rinsed, it left a film-like coating on my hair that made it feel weighed down instead of clean and volumized. I really wanted to love it, but the residue made it hard for me to enjoy or continue using. Everyone's hair is different, but this wasn't the right fit for mine.