Everyone dreams of smooth, frizz-free, and shiny hair—but achieving that doesn’t have to cost a fortune. Keratin hair oil serums are a game-changer, helping to strengthen hair, tame frizz, and add a glossy finish. The good news? You don’t need to splurge on luxury brands to get salon-worthy results. In this post, we’ve rounded up 5 budget-friendly keratin hair oil serums under $20 that deliver incredible results without breaking the bank. Whether you have dry, damaged, or frizzy hair, these affordable options will help you maintain healthy, gorgeous locks every day.
Luseta Keratin Hair Oil Serum
This serum is designed to strengthen, nourish, and repair hair, especially if it’s color-treated, dry, or damaged. It’s a treatment oil that helps restore health and shine to your hair.
Key Features & Benefits:
- Infused with Keratin:
- Keratin is a natural protein in hair. This oil helps replenish lost keratin, making hair stronger and reducing breakage.
- Nourishing & Strengthening:
- The formula repairs damage, softens hair, and adds shine. It works to make hair more resilient and healthy.
- Weightless Smoothing:
- Unlike some heavy oils, this one doesn’t weigh hair down. It smooths frizz while keeping hair light and manageable.
- Versatile Usage:
- On dry hair: Apply to ends to condition, reduce frizz, and add shine.
- On towel-dried hair: Rub a small amount into your palms and apply from mid-length to ends. Amount depends on hair thickness and length.
- Color-Safe Formula: Safe for color-treated hair, so it won’t strip or fade your hair color.
Keratin-Infused Hair Serum
This is a keratin-infused hair serum designed to repair, strengthen, and protect all hair types, especially frizzy, dry, damaged, or color-treated hair. It’s a lightweight, leave-in hair oil that smooths hair, adds shine, and helps manage frizz.
Key Benefits:
Strengthening & Repair: Enriched with keratin, collagen, biotin, castor oil, and coconut oil to repair damage, prevent breakage, and heal split ends.
Frizz Control: Tames frizz, flyaways, and curls while providing anti-humidity protection.
Heat Protection: Protects hair from damage caused by flat irons, blow dryers, and sun exposure.
Shine & Smoothness: Leaves hair silky, smooth, and glossy without weighing it down.
Lightweight & Non-Greasy: Can be used daily as a leave-in treatment.
Safe & Free From Harsh Chemicals: Alcohol-free, paraben-free, petroleum-free, sulfate-free, and cruelty-free.
Hair Type:
Suitable for all hair types—thin, thick, straight, wavy, curly, or color-treated hair.
How to Use:
Apply a small amount to damp or dry hair, focusing on mid-lengths to ends.
Style as usual. Can be used daily for smoothness, shine, and frizz control.
MAREE Hair Oil Keratin Capsules
MAREE Hair Oil Keratin Capsules are a leave-in hair treatment designed to tame frizz, repair damage, and enhance shine. Enriched with keratin, vitamins (A, B5, E), and nourishing oils (jojoba, argan, macadamia), these capsules help restore dry, damaged, or curly hair while protecting it from heat and breakage.
Key Benefits:
Frizz & Breakage Control: Reduces frizz, flyaways, and prevents breakage, leaving hair smooth and manageable.
Repair & Split End Prevention: Seals split ends, strengthens hair bonds, and restores damaged strands.
Shine & Softness: Leaves hair silky, shiny, and revitalized.
Heat Protection: Protects hair from damage caused by styling tools.
Convenient & Precise Dosage: Capsules provide the perfect amount of serum, easy to apply without waste.
Hair Type:
Suitable for all hair types: straight, wavy, curly, frizzy, bleached, or color-treated.
Material Type Free:
Free of formaldehyde, mineral oil, phthalates, and sulfates—safe for daily use.
How to Use:
Break open a capsule.
Apply serum to damp or dry hair, focusing on mid-lengths to ends.
Style as usual. One capsule is enough even for long hair.
L'ANZA Keratin Healing Hair Oil
L’ANZA Keratin Healing Hair Oil is a nourishing hair treatment designed to revive, strengthen, and add shine to damaged or dry hair. Infused with keratin and the Phyto IV Complex, it delivers moisture, improves hair elasticity, and helps protect hair from damage while promoting smoothness and body.
Key Benefits:
Strengthens & Repairs: Keratin helps restore hair structure, reducing breakage and strengthening each strand.
Boosts Shine & Radiance: Adds smoothness, shine, and a healthy-looking glow.
Adds Body & Bounce: Improves hair texture, making it soft, voluminous, and manageable.
Nourishing & Moisturizing: Infuses hair with vital nutrients to prevent dryness and frizz.
Sulfate & Paraben Free: Gentle formula safe for regular use and color-treated hair.
Cruelty-Free: No animal testing involved in the production.
Hair Type:
Suitable for all hair types—straight, wavy, curly, frizzy, or color-treated.
How to Use:
After shampooing and conditioning, apply to clean, damp hair.
Comb through evenly.
Blow-dry or style as desired for a smooth, shiny, and healthy finish.
Remilia Hair Serum
Remilia Hair Serum is a keratin and protein-infused treatment designed to repair, smooth, and protect frizzy or damaged hair. Made in Italy and delivered in convenient plant-based capsules, it nourishes hair from root to tip while providing UV protection and reducing breakage.
Key Benefits:
Frizz & Breakage Reduction: Reduces frizz and breakage by up to 43% after one use.
Shine & Softness: Adds up to 90% more shine, leaving hair silky, smooth, and tangle-free.
Repair & Strengthening: Infused with keratin, silk protein, and Vitamin B5, it restores damaged hair and strengthens hair structure.
UV & Heat Protection: Shields hair from sun and heat damage, keeping it healthy and vibrant.
Lightweight & Non-Greasy: Can be used as a leave-in after shampoo, suitable for all hair types.
Hair Type:
Safe and effective for all hair types: straight, wavy, curly, frizzy, fine, thick, colored, or treated.
How to Use:
Twist and open a capsule.
Apply evenly to damp or towel-dried hair, focusing on mid-lengths to ends.
Style as usual—no rinsing required.