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custom facial serum

1.2oz | $49.99

custom facial serum

1.2oz | $49.99

Deliver impactful nourishment to your skin with custom serum between use of cleanser and moisturizer.

  • bullethighest concentration of
    active ingredients
  • bullethighest concentration of active ingredients
  • bulletdeep-skin nourishment
  • bulletgel-to-liquid-to-powder
    technology for easy
  • bulletgel-to-liquid-to-powder technology for
    easy absorption
  • bulletdermatologist-tested,
  • bulletdermatologist-tested, non-irritating
  • bulletsuitable for sensitive
  • bulletsuitable for sensitive skin


base ingredients

Your unique serum formula will be constructed with these core ingredients.

betaine: An amino acid naturally found in your skin that keeps it hydrated and looking plump.

panthenol: Also known as vitamin B5, panthenol helps the skin attract and hold moisture.

allantoin: A trusted skin-soothing and skin-conditioning agent.


recommended use

After custom cleanser, apply half to full dropper of serum onto hands. Gently press onto skin without rubbing and let dry completely. Seal with moisturizer (do not miss this step!). Can be used AM and/or PM.


great for...

Function of Beauty skin care is recommended for all skin types as each product is specially formulated to address your unique skin goals and needs.

custom facial serum

A nourishing serum using gel-to-liquid-to-powder technology that glides on effortlessly and penetrates deeply into skin. Our serum has the highest concentration of hero ingredients of the set.

Custom Skin Serum

high-performing, personalized formulas

Cruelty-free badge Cruelty-free badge Cruelty-free badge Cruelty-free badge Cruelty-free badge Dermatologist tested badge

the people have spoken

*The testimonials were shared by customers who received a sample as part of our testing group.


Why should I incorporate a serum into my regimen?

Our customized serum is a critical step in a complete skincare regimen, delivering the highest concentration of key ingredients in our range. It is designed for use between the cleanser and the moisturizer as a way to deliver maximum results in a focused manner.

What does the serum feel like?

Our custom serum uses a gel-to-liquid-to-powder technology that feels like a gel, goes on like a liquid, and finishes velvety (but not dry!) like a powder. This quick-absorbing formula is an effective carrier for the highest concentration of our #skingoal ingredients, but also provides a soft focus and blurring effect, and is water-based, so it can penetrate deeply into skin.

What is the fragrance like?

Fragrance-Free: A great option for those with sensitivities. When we say fragrance-free, we truly mean it; unlike “unscented” products, we do not add anything to mask the natural scents of the ingredients. The smell will vary based on your selected goals and their individual ingredients.

(dew) you: Indulge in the rush of natural waters, with notes of cucumber and a hint of citrus for a complete refresh (100% natural). Other customers have said that it’s a fresh scent that reminds them of water!

What is the pH of the serum?

Our Custom Serum has a pH range of 5.5-6.5.

What is the shelf life / How should the products be stored?

We recommend using Function of Beauty skin care products within 12 months of receiving them, and storing then in a dry environment, away from direct sunlight.