EVERYformula.ONESYSTEM.
Every formula began as a treatment need at Resonance spa. Each one was tested on clients, adjusted until skin responded, and reformulated if it did not. The Living Formulation System has been running since 2019. These are the formulas it produced.
Each formula performs better
in sequence
than in isolation.
Full Skincare Collection The Collection(12)


Gentle Cleanser
The first step every result depends on. Removes buildup without stripping the barrier or microbiome.
The Protocols.
Choose yours.
"The Living Formulation System means these formulas are never finished. If the skin stops responding, we reformulate. That is the commitment."
The layering order
Lightest to richest. Always.Cleanse, activate, hydrate, treat, defend, boost, renew or reset, seal, finish, protect. Every formula has a role, and the order keeps the system clear.
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1
Cleanse
Gentle CleanserRemoves buildup without stripping.$48
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2
Activate
XO EssenceCalms, hydrates, and prepares skin.$40
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3
Hydrate
Hydrate SerumAdds water-binding hydration.$78
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4
Treat
C Serum, Clarify Serum, or Firming SerumChoose by need: tone, congestion, or structure.from $55
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5
Defend
Defense SerumProtects, detoxes, and reduces stress load.$78
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6
Boost / Renew / Reset
XO Serum, Renew PM, or Radiance MaskAdvanced support, controlled PM renewal, or weekly surface reset.from $60
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7
Seal
Recovery CreamRepairs the barrier and locks support in.$35
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8
Finish
Protect OilTHD vitamin C finish for glow, elasticity, and radiance.$78
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9
Protect
Shield SPF 35+Final daytime protection.$62
Each formula began as a treatment need.
A product second.
The system is the result.
Each formula performs better when the skin is prepared for it. Order is part of the result.
Every routine depends on a barrier that can hold water, tolerate actives, and recover from stress.
Tone, congestion, firmness, and renewal require different treatments. The system keeps those steps clear.
SPF, barrier support, and stress reduction keep results from being undone every morning.
Start where your skin is now.
























