Hair Oil Showdown: Kérastase Elixir Ultime vs. Olaplex No.7 Bonding Oil

Both of these hair oils have earned a permanent place in my routine—but for different reasons. If you have balayage, highlighted, or color-treated hair, here’s how they compare after regular use.

✨ Kérastase Elixir Ultime

Overall Rating: ⭐⭐⭐⭐⭐ (5/5)

Best For:

• Everyday shine
• Softness
• Luxury finish
• Dry ends
• Blonde balayage

Pros

• Leaves hair incredibly soft and silky
• Adds beautiful shine without feeling greasy
• Lightweight enough for daily use
• Helps smooth frizz and flyaways
• Luxurious scent that lasts

Cons

• Premium price
• Focuses more on softness and shine than bond repair

My Take
If I want my hair to look glossy, healthy, and effortlessly polished, this is the oil I reach for. It gives my balayage a beautiful glow while keeping my hair soft and touchable.

---

✨ Olaplex No.7 Bonding Oil

Overall Rating: ⭐⭐⭐⭐☆ (4.8/5)

Best For:

• Damaged hair
• Heat styling
• Repair-focused routines
• Frizz control

Pros

• Helps reduce frizz
• Supports damaged, processed hair
• Very concentrated—a little goes a long way
• Great before blow drying or heat styling
• Adds shine while helping protect hair

Cons

• Slightly richer feel than Kérastase
• Doesn’t leave quite the same silky finish or luxury scent

My Take
When my hair feels dry from highlighting or heat styling, this is my repair oil. It gives my hair strength while keeping flyaways under control.

---

Side-by-Side Comparison

Feature	Kérastase Elixir Ultime	Olaplex No.7
Shine	⭐⭐⭐⭐⭐	⭐⭐⭐⭐☆
Softness	⭐⭐⭐⭐⭐	⭐⭐⭐⭐☆
Frizz Control	⭐⭐⭐⭐☆	⭐⭐⭐⭐⭐
Repair Benefits	⭐⭐⭐⭐☆	⭐⭐⭐⭐⭐
Lightweight Feel	⭐⭐⭐⭐⭐	⭐⭐⭐⭐☆
Luxury Scent	⭐⭐⭐⭐⭐	⭐⭐⭐⭐☆
Everyday Use	⭐⭐⭐⭐⭐	⭐⭐⭐⭐☆

Final Verdict

If I could only own one, I’d choose Kérastase Elixir Ultime because I love the luxurious shine, softness, and healthy finish it gives my balayage every day.

That said, Olaplex No.7 is excellent when my hair needs extra support after highlighting or frequent heat styling.

Winner for Everyday Luxury: 🥇 Kérastase Elixir Ultime
Winner for Repair & Protection: 🥇 Olaplex No.7 Bonding Oil

Would I repurchase both? Absolutely. They complement each other well—Kérastase for everyday shine and softness, and Olaplex when my hair needs a little extra repair. **The blogger is an Amazon Affiliate.