Hair oil and hair serum can sound similar, but the PROMIROSE products have different jobs. Hair Growth Oil is applied to the scalp. Elixir Hair Serum is a leave-in product applied through the hair, focusing on the mid-lengths and ends. Start by asking where you want to add care: the scalp, the lengths, or both.

Scalp care

Mid-lengths & ends
The main differences
| Question | Hair Growth Oil | Elixir Hair Serum |
|---|---|---|
| Where do I apply it? | Directly to the scalp. | Through wet or dry hair, focusing on mid-lengths and ends. |
| What is its role? | Nourishing and conditioning scalp care for healthier-looking hair. | Smoothing the look of frizz and split ends, adding shine and softness. |
| How do I begin? | Apply a few drops and massage gently. | Spread a small amount between the palms and distribute through the hair. |
Choose oil for the scalp step
PROMIROSE Hair Growth Oil fits a consistent scalp-care routine. Apply a few drops directly to the scalp and massage gently. Read the bottle directions and full ingredient list before use. If you are comparing supply sizes, the two-bottle oil pack includes the same scalp-care product in a larger supply.
Choose serum for the lengths and finish
Elixir Hair Serum is designed for dry, frizzy or dull-looking hair. Use a small amount on wet hair after showering or on dry hair before brushing. Focus on the mid-lengths and ends, then style as desired. Its lightweight finish is designed to add shine and softness without a heavy feel.
Can I use both?
They can fit different steps of the same routine: oil for the scalp and serum for the lengths. Follow each product's directions rather than mixing products in the bottle or assuming the application instructions are interchangeable. Start with a small amount so you can see how the finish feels in your hair.
What if I also use heated styling tools?
Do not assume a shine serum is a substitute for a product intended for heat protection. PROMIROSE Heat Protect Spray is designed for use before heat styling; follow its directions. The Ultimate Hair Growth & Styling Bundle combines Hair Growth Oil, Elixir Hair Serum, Heat Protect Spray and a bamboo brush.
A simple next step
If scalp application is new to you, read how to use Hair Growth Oil. For the brushing step, see gentle bamboo brush detangling. You can also compare sets in PROMIROSE bundles.
Results and product feel vary between people. Discontinue use if irritation occurs. For questions about a PROMIROSE product, use the website chat or hello@promirose.com. Learn more about the brand through our founder's story.