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L4B Gradient Hydrosol-in-Oil


What is the L4B?

moss founder Celestyna created the L4B as a place to fulfill her curiosity and creativity. New ingredients, formulations, and techniques are tested, including ultra powerful and specific products Celestyna creates for her seasonal needs. Some of these exceptional creations we make available for you as couture experimental skincare – extremely limited quantity and always expertly hand-crafted by the proprietress herself.

At the end of the year we consult all of our L4B participants and consider adding a favorite L4B formulation to the permanent moss collection.

Please note, due to the foundational concept of the lab, each batch will vary slightly – it may have slightly different ingredients and different percentages of ingredients. The L4B is NOT a conventional, static skincare line – it is a formulator’s playground.

(All sales final)




In classic green beauty, a complete skincare hydration process involves both lipids from a facial oil and a hydrosol mist for critical water-based hydration.

This unique product “seals” hydrosol micro-droplettes in oil, so that two products (oil and mist) can be combined for simplification of use.

Gorgeous fresh spring scent of wet narcissus. Essential oil free.

(Product may separate – this is natural and expected. For this reason, empty pipette and shake well before each use. Then refill pipette and dispense.)

~ Hemp Seed Oil (Rich in skin-strengthening chlorophyll and a perfect balance of Omega Fatty Acids.)

~ Sacha Inchi Oil (A unique blend of anti-inflammatory linoleic acid and packed with Omega 3.)

~ Amaranth Grain Oil (Very high in nutrients, proteins and amino acids.)

~ Milk Thistle Oil (Extremely soothing and lightweight.)

~ Viola Extract (Helps the skin retain hydration.)

~ Tonka Bean Extract (Rich in polyphenols, offers UV radiation mitigation)

~ Rose Hydrosol (Anti-bacterial, anti-inflammatory and hydrating.)

A unique hydrosol-in-oil emulsion.


Suitable for blending with moss Halo Photoprotective Soothing Essence Powder. 


20ml size


Batch 1: Rose Hydrosol, Milk  Thistle Oil, Amaranth Oil, Sacha Inchi Oil, Hemp Seed Oil, Viola Extract, Tonka Bean Bioferment, Polyglyceryl Oleate, Rosemary Extract, Caprylic Acid, Lauric Acid, Propanediol, Potassium Sorbate


Apply as you would a facial oil, sparingly over clean skin.

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