girl using conditioner

We often get asked this question in the comment sections on Facebook, Curly Q&A, and below articles: can a daily conditioner be used as a leave-in conditioner?  Let’s start with intention. Why would someone use a daily conditioner (aka a rinse-out conditioner) as a leave-in conditioner? Here is what I came up with:
  • You ran out of leave-in conditioner
  • Need to save money
  • Want to downsize your product arsenal
  • You like the hold and weight of the daily conditioner, which is commonly used for wash and go’s (for example Mahogany Curls)

What's in a formula?

Though you may not be aware that your hair holds a charge, cosmetic scientists are and they formulate your hair products accordingly. Hair holds a negative charge and the strength of that charge is based on the
porosity of the hair. For example, chemically treated hair, dry, and damaged hair, will have a strong negative charge. Conditioners are formulated to hold a positive charge, therefore attracting one to the other.

Daily Conditioner

Daily conditioners hold a positive charge, and act to virtually fill in the gaps and cracks in the cuticles, or outer protective layer of the hair shaft. This cuticle can chip away over time from regular weathering, chemical processing, and excessive manipulation and a conditioner is necessary to smooth and strengthen the strands by repairing its shaft.

Leave-in Conditioner

The leave-in conditioning formula is similar, as it is also a conditioner that attracts to the most negative areas of the hair. However, it is different. The leave-in is lightly formulated and can be used daily after the rinse-out conditioning formula has been rinsed out. The leave-in conditioner serves as a barrier surrounding the hair shaft while the hair is prepped, detangled, and styled after cleansing and conditioning. Although it is full of conditioning agents, attempting to survive on solely leave-in conditioner would be inadequate conditioning for the regular wear and tear of the hair. It is in your best interest to use products as they were formulated for the best results.

It is in your best interest to use products as they were formulated for the best results.

On the other hand, there may be times that you are out of your  leave-in conditioner and opt to not rinse out your regular conditioner. If that is the case, let’s hear from the expert Miss Jessie’s. When asked specifically about using the Miss Jessie’s Crème De La Crème Conditioner as a leave-in rather than the Miss Jessie’s Leave-in Condish this was the response: “Yes, you may use our regular conditioner as a leave-in as an alternative if you don't have a leave in, however, make sure to use less than the amount you would if you were rinsing it out to avoid buildup on the hair and scalp, causing it to flake and affect the outcome of your styling results.”

Miss Jessie’s products have lightweight formulas, so in their case this may work for you. DevaCurl is another hair care line that approves leaving in its DevaCurl One Condition. But we would not recommend using daily conditioners with heavier consistencies as your leave-in.

Silicone Buildup

A buildup of product residue on the hair shaft can impact your hair’s ability to be enhanced by other hair products (i.e. styling products) because the formula of a daily conditioner is stronger than that of a leave-in conditioner. Unfortunately, too much of a good thing can be a bad thing. So what makes DevaCurl and Miss Jessie’s conditioners risk free? It is the absence of non-water soluble silicones. Use this guide when choosing your conditioner to prevent product buildup by Audrey Davis Sivasothy, author of The Science of Black Hair: A Comprehensive Guide to Textured Hair. 

Removed easily with water

  • Dimethicone copolyol
  • PEG/PPG silicones
  • Laurel methicone copolyol
  • Hydroxypropyl

Stubborn/Requires Detergent/surfactant to remove

  • Dimethicone
  • Dimethiconol
  • Behenoxy dimethicone
  • Phenyl trimethicone
  • Simethicone
  • Trimethicone
  • Polydimethysiloxane

If your daily conditioner contains any of the stubborn ingredients on the list above, then it is best if you do not use it as your leave-in conditioner.

Take the info you have learned and decide what is best for your precious strands. Maybe your hair is prone to buildup so you choose not to take risks or maybe you change your brand of conditioner to include the easy to remove ingredients to suit your tastes. The choice is yours!

If your daily conditioner contains any of the stubborn ingredients on the list above, then it is best if you do not use it as your leave-in conditioner. 

So, what do you use as a leave-in conditioner?