L'Oreal Paris Elvive Dream Lengths Frizz Killer Leave-In

L'Oreal Paris Elvive Dream Lengths Frizz Killer Leave-In Serum is a lightweight, water-based leave-in that smooths frizz and flyaways while adding heat protection up to 450°F.

If you’re growing out long hair and want to keep ends looking polished, this 3.4 ounce serum is designed to help control static, tame unruly strands, and make long hair easier to style. It fits into the Dream Lengths range of shampoos, conditioners, detanglers and treatments that target the unique needs of long hair without weighing it down.

How does this serum reduce frizz and flyaways?

The formula smooths the hair surface so strands lie flatter and reflect light more evenly, which reduces the appearance of frizz and stray hairs. It’s water-based and non-greasy, so it slips through hair without leaving a heavy residue.

• Anti-frizz active ingredients smooth the cuticle for a sleeker finish
• Lightweight texture that avoids buildup on long lengths
• Leaves a soft, touchable feel rather than stiffness

Will it protect my hair from heat styling?

Yes—when used before blow-drying or flat-ironing, the product helps protect strands from heat up to 450°F. Apply evenly through damp hair before using hot tools to help reduce damage associated with styling.

• Use on damp hair prior to blow-drying or straightening
• Helps shield hair from high-temperature styling exposure
• Works alongside Dream Lengths heat products for layered protection

Is this serum suitable for long or damaged ends?

The Dream Lengths Frizz Killer is formulated specifically with long hair in mind: it aims to help preserve the length by minimizing breakage caused by tangles, static, and dryness. It pairs well with the rest of the Dream Lengths line—shampoo, conditioner, masks and leave-ins—to address split ends and manageability.

• Helps smooth the last inches of hair to reduce breakage
• Compatible with other Dream Lengths treatments for restorative routines
• Non-silicone, paraben-free option for those preferring lighter finishes

How do I use the leave-in serum for best results?

Dispense a small amount into your palms and rub hands together, then run through mid-lengths to ends of damp or dry hair, avoiding the roots to prevent greasiness. For heat styling, apply before using a blow dryer or flat iron; for daily touch-ups, use sparingly on dry hair to tame flyaways.

• Start with a pea-sized amount; increase only for thicker, longer hair
• Focus application on mid-lengths and ends, not scalp
• Combine with Dream Lengths conditioner for added detangling benefits

Who is this for? If you’re growing or maintaining long hair and want a lightweight finish that smooths frizz, reduces static, and helps guard against heat styling, this serum is a practical addition to your routine. It’s especially useful for hair that tangles easily, looks dry at the ends, or needs a non-greasy product to refine the final look without flattening volume. Pair it with other products from the L'Oreal Paris Elvive Dream Lengths collection for a targeted long-hair care system.

Ingredients

1208317 D INGREDIENTS AQUA / WATER / EAUGLYCERINVP/VA COPOLYMERPEG-40 HYDROGENATED CASTOR OILHYDROXYETHYLCELLULOSEPHENOXYETHANOLPARFUM / FRAGRANCEETHYLHEXYLGLYCERINBEHENTRIMONIUM CHLORIDEPOLYQUATERNIUM-6HYDROXYETHYL OLEYL DIMONIUM CHLORIDECETRIMONIUM CHLORIDEISOPROPYL ALCOHOLHEXYL CINNAMALBENZYL SALICYLATELINALOOLBENZYL ALCOHOLRICINUS COMMUNIS SEED OIL / CASTOR SEED OILTHEOBROMA CACAO SEED BUTTER / COCOA SEED BUTTERLIMONENEALPHA-ISOMETHYL IONONEHYDROLYZED WHEAT PROTEINCOUMARINCITRONELLOLHYDROXYCITRONELLALGERANIOLHYDROLYZED CORN PROTEINHYDROLYZED SOY PROTEINTETRASODIUM EDTATOCOPHEROLCI 19140 / YELLOW 5CI 17200 / RED 33 FIL CODE D259483/1