Quick answer
Use BHA 9 Treatment first, then Radiance Renewal Mask as the last step in your evening routine. BHA 9 is a concentrated leave-on exfoliant that targets clogged pores and rough patches; Radiance Renewal Mask is an overnight brightening mask that hydrates and boosts glow. If your skin is sensitive, alternate them on different nights instead of layering.
BHA 9 Treatment
What each product actually does
BHA 9 Treatment is a concentrated leave-on exfoliant with salicylic acid. It delivers controlled, sustained release of salicylic acid to improve the look of enlarged or clogged pores, bumps, and rough, dry patches, and it is suitable even for skin prone to milia. Radiance Renewal Mask is a silky overnight gel mask that hydrates and brightens using a proprietary multi-brightening complex. One is a targeted exfoliant; the other is a finishing mask.
How to layer them in one evening
If you want to use both on the same night, apply BHA 9 Treatment to clean, dry skin after cleansing and toning, then follow with Radiance Renewal Mask as the last step. Wait a minute or two between steps so the BHA layer settles. Because both are leave-on products, start with this combo once or twice a week and see how your skin responds before increasing frequency.
When to choose one instead of both
If your main concern is clogged pores, rough texture, or milia-prone bumps, BHA 9 Treatment alone may be enough. If dullness, dehydration, or a tired-looking complexion is the bigger issue, Radiance Renewal Mask can be your evening brightening step without added exfoliation. For dry to very dry skin that needs deep hydration rather than exfoliation, Hydrating Treatment Mask is a richer overnight option.
How often to use each
Radiance Renewal Mask is designed to be used as the last step in your evening skincare routine, and its gel texture makes it comfortable for regular overnight use. BHA 9 Treatment is concentrated, so most people should start two to three nights a week and adjust based on tolerance. If you are new to salicylic acid, begin with BHA 9 once or twice a week before adding the mask on the same night.
Trade-offs to weigh
- Exfoliation vs. hydration: BHA 9 Treatment exfoliates and targets pores and bumps; Radiance Renewal Mask hydrates and brightens. They solve different problems, so layering gives you both effects but adds more steps. Choose based on whether texture or dullness is your main concern.
- Frequency and tolerance: BHA 9 is concentrated and best introduced slowly, while Radiance Renewal Mask is a leave-on overnight mask. Using both every night may be too much for some skin types. Start with alternating nights if you are unsure.
- Sensitive or dry skin: If your skin is dry or easily irritated, a single targeted product plus a richer hydrating mask may be more comfortable than combining an exfoliant and a brightening mask. Hydrating Treatment Mask can replace Radiance Renewal Mask on nights when your skin needs calming.
Key product facts at a glance
- BHA 9 Treatment: Concentrated leave-on BHA exfoliant with salicylic acid; delivers controlled, sustained release; minimizes the appearance of enlarged pores and diminishes the appearance of hard, white bumps; suitable for skin prone to milia. It is the step that addresses clogged pores and rough texture, so it should go on before any mask.
- Radiance Renewal Mask: Silky overnight skin-brightening mask with a proprietary multi-brightening complex; provides skin-softening hydration; use as the last step in your evening skincare routine. It seals in hydration and brightens overnight, so it belongs after your exfoliant.
- Hydrating Treatment Mask: Deeply hydrating overnight face mask for dry to very dry skin; replenishes and calms skin; rich cream formula; use on cleansed skin as often as desired. A better fit than Radiance Renewal Mask when the priority is intense hydration rather than brightening.
Which routine fits you?
Best for
- Skin with clogged pores, rough patches, or milia-prone bumps that also wants overnight brightening
- People who already tolerate salicylic acid and want a simple two-step evening routine
- Those who prefer a leave-on exfoliant plus a finishing mask instead of multiple serums
Not for
- Very sensitive or dry skin that reacts to frequent exfoliation — consider Hydrating Treatment Mask alone
- Anyone new to BHA who wants to start with just one active product
- Skin looking only for deep hydration without exfoliation







