Ever find yourself scrolling through TikTok or Instagram and stumbling on skincare routines so glossy, they practically glow off the screen? Lately, two trending methods have emerged: slugging and skin flooding. Both promise radiant, hydrated skin, but which actually suits your unique canvas? Let’s break it down, with a friendly touch and a nod to science.
What Is Slugging?
Slugging is using a thick coat of an occlusive, such as petroleum jelly as the last step in your evening skincare routine. This forms a protective barrier that seals in moisture and makes your earlier serums and moisturisers work more effectively during sleep.
Pros
- Clinically proven to seal in moisture and support barrier repair.
- Affordable, simple, and safe, even for sensitive skin types.
- Boosts the effectiveness of other skincare products by trapping them under a protective layer.
Cons
- It can potentially clog pores or trigger breakouts, especially for oily or acne-prone skin.
- May intensify active ingredients like retinoids or acids, since slugging locks in everything, it can amplify irritation.
- Requires clean skin and moderation, as overuse may overwhelm your pores.
Who Benefits Most
- Dry, flaky, or eczema-prone skin (including some rosacea types) can see real benefits.
- Safe for most skin types when used in moderation, just avoid slugging over active ingredients or dirty skin.
Also Read: Skin Slugging: Who Should Try And Who Should Avoid It
What Is Skin Flooding?
Skin flooding, though not as widely defined, is essentially about saturating the skin with ultra-hydrating, lightweight fluids: think humectant-rich toners, essences, and water-based serums. he concept is to inundate your skin with moisture that is rapidly absorbed prior to sealing it up (usually with a light moisturiser).
The Science Behind It
Although direct studies on "skin flooding" are scarce, it fits within traditional skincare wisdom: humectants such as hyaluronic acid attract water into the skin, and when applied on moistened skin, their effectiveness is heightened. Hyaluronan (hyaluronic acid), according to an old study, penetrates deep within the epidermis and even dermis, implying that this hydrating molecule doesn't merely rest on the surface but infiltrates deeper levels of the skin to provide its effect. Placing light hydration layers underneath sealing maximises absorption and hydration without heaviness.
Pros
- Ideal for oily or combination skin, as it layers hydration without thickness.
- Lightweight and breathable and is great for hotter climates or makeup prep.
- Less likely to clog pores or provoke breakouts compared to occlusives.
Cons
- It may not offer enough protection for very dry or compromised skin barriers unless followed by an effective moisturiser.
- Without a sealing layer, hydrating serums can evaporate quickly, limiting long-term moisture retention.
Also Read: Dermatologist Answers: Is A Face Moisturiser With SPF As Effective As A Sunscreen?
Choosing Between Them
- Dry / compromised skin: Go for slugging due to its powerful hydration and barrier support.
- Oily / acne-prone / sensitive skin: Lean toward skin flooding, which has lighter hydration and lesser risk of breakdown or congestion.
- Combination skin: You can also try both, slugging on dry areas (like cheeks) and skin flooding on oilier zones.
How to Do It Safely
Slugging
- Cleanse thoroughly.
- Apply hydrating layers (like HA serum, ceramides).
- Seal with a pea-sized occlusive.
- Start just 1–2 times a week and observe your skin’s reaction.
Skin Flooding
- Apply a hydrating toner or essence to slightly wet skin.
- Apply a lightweight serum and moisturiser.
- Seal with a light balm only on drier areas if desired.
Bottomline
Both techniques share the same goal at their fundamental level i.e. hydration, but they go about it differently. Slugging is analogous to covering your skin in a warm blanket, perfect for dry or sensitive skin. Skin flooding is a light splash of relief, light, efficient, and airy. Select what suits your skin's season and narrative, and always hear how your skin reacts.