Deep conditioning is one of those things everyone says they do and almost nobody does correctly. They either do it too rarely, leave it on for 30 seconds, or use a product that isn’t actually a deep conditioner. Let me clear this up.
Regular conditioner vs. deep conditioner
Your daily conditioner smooths the cuticle and adds slip. It sits on the surface. A deep conditioner (or mask) is formulated with smaller molecules that can penetrate further into the hair shaft, delivering moisture or protein where it’s actually needed.
Using your regular conditioner for 10 minutes doesn’t turn it into a deep conditioner. The formulation is different. You need the right product for the right job.
How often
Once a week for most people. If your hair is very damaged, color-treated, or naturally dry — twice a week until you notice improvement, then scale back to weekly maintenance.
If your hair is fine and healthy, every 10–14 days is probably enough. Over-conditioning fine hair can make it limp and heavy. You’ll feel the difference — if your hair feels weighed down and won’t hold volume, you’re overdoing it.
How to actually do it
Shampoo first. Always. Deep conditioner works better on clean hair because product buildup blocks absorption. Gently squeeze excess water from your hair — you want it damp, not dripping.
Apply from mid-lengths to ends. Avoid the roots unless you have a very dry scalp. Use more than you think you need — your hair should feel saturated, not just lightly coated.
Leave it on for at least 5–10 minutes. Not 30 seconds. Not “while I wash my face.” Set a timer. If the product instructions say 5 minutes, do 10. If they say 10, do 15. More contact time means better penetration.
Heat helps. Wrap your hair in a warm towel or put on a shower cap and let your body heat create a gentle warming effect. Heat opens the cuticle, allowing the conditioning agents to penetrate deeper.
Rinse with cool water. Cool water closes the cuticle and seals in what you just deposited. Hot rinse = open cuticle = product slides right back out.
Moisture vs. protein: know what you need
This is the mistake most people make. They grab whatever deep conditioner is on sale without thinking about what their hair actually needs.
If your hair feels limp, stretchy, gummy when wet — it needs protein. If it feels dry, rough, stiff, crunchy — it needs moisture. Most damaged hair needs both, but the ratio matters.
At Reverie, we use Davines NOUNOU Hair Mask for moisture and K18 Leave-In Molecular Repair Mask for structural repair. They’re not interchangeable — they address different problems. Your stylist can tell you which one (or both) your hair needs right now.
DIY masks: the honest truth
Avocado, honey, egg, mayonnaise — the internet is full of DIY mask recipes. Do they work? Sort of. Are they as effective as professional products? No. The molecules in professional deep conditioners are engineered to penetrate the hair shaft. A mashed avocado mostly sits on the surface.
They won’t hurt your hair, and if you enjoy the ritual, go for it. But if you’re dealing with real damage or dryness, invest in a proper mask.
The takeaway
Deep condition weekly. Use the right product for your problem. Leave it on long enough to work. That’s it. Simple advice that most people don’t follow because simple isn’t exciting.
Not sure what your hair needs? Take our hair quiz or ask your stylist at Reverie.
