The study shines a light on another end-of-summer traveling woe: new products. If you’re using the skin care provided by your hotel, train, plane, etc., then your skin may have an adverse reaction. Similarly, many people buy travel-friendly products that may fit the bill size-wise but aren’t always a perfect match for your skin type.
Not to mention, trying new products at any time may cause an initial breakout or irritation (this is different from person to person), so it’s best to keep it consistent while traveling. Rather than buying pre-packed, TSA-approved products, invest in some refillable containers to bring your favorite routine on the go.